Answer:
40(x-10)
Step-by-step explanation:
What is 0.9 divided 30
Answer:0.03
Step-by-step explanation:I typed in a calculator.
what equation is equivalent to y=2x+3 ?
Answer:
x+x +1+2= y
Step-by-step explanation:
claudia is 6 years older than bill. the sum of their ages is 120. How old is Claudia
Answer:
The answer is 66
Step-by-step explanation:
plz give brainliest
Answer:
Claudia is 63 years old
Step-by-step explanation:
Find two numbers that subtract to get 6, but add to get 120.
I used 57 and 63. If Claudia is 6 years older than Bill, then she would have to be 63.
57 + 63 = 120
63 - 57 = 6
in equilateral ABC what does y equal
Answer:
y = 75°, and I'm pretty sure this sheet is incorrect
Step-by-step explanation:
The interior angles of a triangle always add up to 180, and in an equilateral triangle, all 3 angles are congruent. (180/3 = 60)
[tex]m\angle A= 60\textdegree= 6x[/tex]
Therefore, [tex]x=10\textdegree[/tex]
[tex]\triangle DAE[/tex] is an isosceles triangle, as [tex]\angle B[/tex] [tex]\cong[/tex] [tex]\angle C[/tex], the sides opposite to them are also congruent; [tex]\overline{\rm AE}\cong\overline{\rm AD}[/tex] and in turn, [tex]m\angle ADE \cong m\angle AED: m\angle ADE = m\angle AED = y[/tex]
If [tex]m\angle DAE = 3x = 30\textdegree[/tex], then [tex]y = (180-30)/2 =150 /2 = 75\textdegree[/tex]
What is the equation of the parabola? Vertex is at (0, 5) and points at (8, 13) and (-8, 13)
y = −x2 + 5
y = x2 + 5
y = x2 − 5
y = −x2 − 5
Answer:
none of the above
Step-by-step explanation:
The attached graph shows the closest candidate—the equation with vertex (0, 5) that opens upward. However, it needs vertical scaling to make it go through the given points.
y = (1/8)x^2 +5
What is -4 divided by 2/5
Answer:
-10
Step-by-step explanation:
multiply by the reciprocal
-4÷5/2
reduce the numbers with greatest common factor 2
-2 x 5
multiply the numbers
-10
Find the amount of air it would take to fill a basketball if the diameter of the ball is 12 inches
In order to find the amount of air to fill a basketball with a diameter of 12 inches, convert the diameter to a radius and then to metric units. Then, use the formula for the volume of a sphere (4/3 * π * r³) to calculate the volume.
Explanation:This is a problem relating to the volume of a sphere, based in Physics. Given the diameter of the ball (12 inches), we first convert this measure to the radius, which would be half of the diameter (6 inches). This can also be converted to the metric system for ease of calculation, where 1 inch equals roughly 2.54 cm, leading to 6 inches as approximately 15.24 cm.
To find the air required to fill up the ball, we apply the formula for the volume of a sphere (4/3)πr³. Plugging in the value of the radius we get, V = (4/3) * π * (15.24 cm)³. Solving this will get us the volume of air required to fill up the basketball.
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The point P has coordinates (-4,1). In which quadrant does point P lie?
Answer: quadrant 2
Step-by-step explanation:
u first go to the left side because your x axis is a negative than u go up one positive and u are on quadrant 2
what is the sum of the distances of R to Q and P to Q?
The sum of the distances of R to Q and P to Q is 9 units.
Solution:
Given points are P(–3, 6), Q(3, 6) and R(3, 3).
Distance between two points formula:
[tex]\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
Distance from R to Q:
Here [tex]x_1=3, y_1=3, x_2=3, y_2=6[/tex]
Substitute these in the given formula, we get
Distance = [tex]\sqrt{(3-3)^2+(6-3)^2}[/tex]
[tex]=\sqrt{0+9}[/tex]
= 3 units
Distance from R to Q is 3 units.
Distance from P to Q:
Here [tex]x_1=-3, y_1=6, x_2=3, y_2=6[/tex]
Substitute these in the given formula, we get
Distance = [tex]\sqrt{(3-(-3))^2+(6-6)^2}[/tex]
[tex]=\sqrt{36+0}[/tex]
= 6 units
Distance from P to Q is 6 units.
Sum of the distances = 3 + 6 = 9 units
Hence the sum of the distances of R to Q and P to Q is 9 units.
can someone please help? if can include working out
Answer:
Step-by-step explanation:
a. 5 x (c) = -35
Divide each side by 5, which is equal to -6. Remember, two negatives make a positive and one negative and one positive makes a negative.
c. 16/(x) = -4
What times what is equal to a positive 16? To solve, multiply x on both sides of the equation to get 16 = -4x then divide -4 on both sides. You'll get the answer -4. 16/-4 = -4.
e. x/(-3)= -9
Like c, multiply both sides by the denominator, so -3. You'll get x by itself for an equation like x = -9 x -3. Then multiply, remember two negatives equal a positive, so x = 27. 27/-3 = -9.
g. -5000 x y = -10,000
Divide -5000 on both sides to get the equation y = -10,000/-5000. Then solve. y= 2. -5000 x 2 = -10,000.
i. 243/x = -81
Mutiply both sides of the equation by x, so x cancels out. You'll end up getting the equation 243= -81x. Then divide both sides of the equation by -81. Now that we have 1 positive and 1 negative we know our answer has to be negative. The equation should look like 243/-81 = x, which is equal to x=-3. Thus, the answer is 243/(-3)= -81.
k. -92 x y= 184
Divide both sides by -92 to get x by itself. Then you'll get the equation y= 184/-92. y= -2 so, -92 x -2 = 184.
clint has 6 apple muffins, 2 corn muffins, and 4 bran muffins what fraction of muffins are bran weite the fraction in simplest form
Answer:
[tex]\frac{1}{3}[/tex]
Step-by-step explanation:
The fraction of bran muffins is expressed as bran muffins over total muffins.
Total muffins = 6 + 2 + 4 = 12 and bran muffins = 4, thus
fraction = [tex]\frac{4}{12}[/tex] ← divide ( cancel ) each value by 4 )
fraction = [tex]\frac{1}{3}[/tex] ← in simplest form
Answer:
1/3
Step-by-step explanation:
4 bran muffins out of 12 muffins in total.
4/12
4 ÷ 4 / 12 ÷ 4
1 / 3
You are trying out for the school play. The probability that you are chosen to
be in the play is 0.5. The probability that you get a lead role is 0.2. What is the
probability that you get a lead role, given that you are chosen to be in the
play?
O A. 0.5
Oo oo
O B. 0.4
O c. o7
O D.0.3
Answer:
0.5 gjhnvbbbvsadasbkkkhhcccf ggghj g
The probability that we will get a lead role, given that we are chosen to be in the play is 0.5.
What is probability?Probability is the ratio that shows the likelihood of an event occurring from a given set of possible events.
We can find the required probability below:
The probability that we will be chosen for the play is 0.5.
The probability that we will get the lead role is 0.2.
In this situation, the probability can be found by adding the probability of being chosen and the probability that we will get the lead role.
The probability that we get a lead role, = The probability that we will be chosen for the play + The probability that we will get the lead role
= 0.5 + 0.2
= 0.7
The probability of us getting a lead role given that we have already been chosen for the play is found to be 0.7. The correct answer is option D.
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7x+4x if ×=2 answer
Answer:22
Step-by-step explanation:
Answer:
22
Step-by-step explanation:
7x + 4x
7(2) + 4(2)
14 + 8
Answer= 22
Hope this helped!! :)
How do you solve 12x -2/3 = 83 1/3
Answer:
4
Step-by-step explanation:
<=> 12x = 83 1/3 + 2/3
<=> 12x = 84
<=> x = 84/12
<=> x = 4
The table shows the yearly earnings, in thousands of dollars, over a 10-year period for college graduates. Which statement is true about the distributions representing the yearly earnings?
a) The mean earnings of the self-employed are higher than the mean earnings of the wage earners.
b) The distribution of earnings for wage earners is more symmetric than the distribution of earnings for the self-employed.
c) The IQRs of the distributions are equal.
d) The standard deviations of the distributions are equal.
nvm its b :)
Answer:
Its B i just got it right
Step-by-step explanation:
The distribution of earnings for wage earners is more symmetric than the distribution of earnings for the self-employed.
What is IQR?IQR stands for Interquartile Range, which is a measure of variability or spread in a set of data. It is calculated by finding the difference between the first quartile (Q1) and the third quartile (Q3) of a data set.
Without the table, it is difficult to provide a definitive answer. However, based on the information given, we can make some general observations:
a) It is possible that the mean earnings of the self-employed are higher than the mean earnings of the wage earners, but this cannot be determined from the information given.
b) It is also impossible to determine which distribution is more symmetric without further information.
c) The statement about the IQRs is also impossible to verify without more information.
d) It is unlikely that the standard deviations of the distributions are equal, as the earnings of self-employed individuals are typically more variable than those of wage earners. However, this also cannot be determined without more information.
Thus, the correct statement can be The distribution of earnings for wage earners is more symmetric than the distribution of earnings for the self-employed.
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Which facts could be applied to simplify this expression? Select three options.
(Negative 5 x minus 3 y) minus (negative x minus 3 z)
To subtract like terms, subtract the coefficients, not the variables.
Like terms are terms that contain the same variable, raised to the same power.
The simplified expression is Negative 6 x minus 3 y + 3 z.
The simplified expression is Negative 4 x minus 3 y + 3 z.
Negative (negative x) is equivalent to Negative x, so Negative 5 x minus x = negative 6 x.
Answer:
A, B, and D
Step-by-step explanation:
To subtract like terms, you're supposed to subtract the coefficients, so Option 1 is correct. The statement like terms are terms that contain the same variable, raised to the same power, is true, so Option 2 is correct. The simplified expression is -4 - 3y + 3z, so Option 3 is wrong and Option 4 is correct. Option 5, -(-x) = -x is wrong, so Option 5 is not correct. Therefore, the answers are Options 1, 2, and 4 (or A, B, and D).
Hope this helps! I got it right on Edgen.
Answer:
a b d
Step-by-step explanation:
Perform all the steps to evaluate this expression.
What is the value of the expression?
1/8
1/2
2
8
Answer:
the answer is 8
Answer:
the answer is 8 because i just did it on E.B
Use the formula for finding the surface area of a rectangular prism.
A=PH+2B
Solve for B
I will mark brainliest for the first to answer RIGHT
Thanks
The formula, when solved for B is, [tex]\frac{1}{2}(A-PH)[/tex].
Step-by-step explanation:
Given,
Formula used to find surface area of a rectangular prism
A = PH + 2B
Solving the formula for B;
Subtracting PH from both sides
[tex]A-PH=PH-PH+2B\\A-PH=2B\\2B=A-PH[/tex]
Dividing both sides by 2
[tex]\frac{2B}{2}=\frac{A-PH}{2}\\\\B=\frac{1}{2}(A-PH)[/tex]
The formula, when solved for B is, [tex]\frac{1}{2}(A-PH)[/tex].
Keywords: subtraction, division
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Final answer:
To solve for B in the formula A=PH+2B, subtract PH from A and then divide by 2, resulting in B = (A - PH) / 2.
Explanation:
The student is asking to solve for B from the surface area formula of a rectangular prism, given by A=PH+2B, where A is the surface area, P is the perimeter of the base, H is the height of the prism, and B is the area of the base.
To solve for B, we'll rearrange the formula as follows:
First, we subtract the term PH from both sides of the equation, which gives us A - PH = 2B.
Then, we divide both sides by 2 to isolate B, resulting in B = (A - PH) / 2.
This process reveals that the base area B can be found by taking the total surface area A, subtracting the product of the perimeter of the base and the height, and then dividing by 2.
Use an equation to find the value of k
so that the line that passes through the given points has the given slope.
(−2,k), (2,0); m=−1
k=
[tex]\boxed{k=4}[/tex]
Explanation:We know that the slope of a line is given by:
[tex]m=\frac{y_{2}-y_{1}}{x_{2}-x_{1}} \\ \\ Where: \\ \\ (x_{1},y_{1}) \ and \ (x_{2},y_{2}) \ are \ points \ that \ lie \ on \ the \ line \\ \\ \\ Here: \\ \\ (x_{1},y_{1})=(-2,k) \\ \\ (x_{2},y_{2})=(2,0) \\ \\ m=-1 \\ \\ \\ -1=\frac{0-k}{2-(-2)} \\ \\ -1=\frac{-k}{4} \\ \\ -k=4(-1) \\ \\ \boxed{k=4}[/tex]
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Which is the simplified form of r Superscript negative 7 Baseline + s Superscript negative 12?
StartFraction 1 Over r Superscript 7 Baseline s Superscript 12 EndFraction
Negative r Superscript 7 Baseline minus s Superscript 12
StartFraction r Superscript 7 Over s Superscript 12 EndFraction
StartFraction 1 Over r Superscript 7 Baseline EndFraction + StartFraction 1 Over s Superscript 12 EndFraction
Mark
Answer:
[tex] \frac{1}{ {r}^{7} } + \frac{1}{ {s}^{12} } [/tex]
Step-by-step explanation:
We want to simplify:
[tex] {r}^{ - 7} + {s}^{ - 12} [/tex]
Let us rewrite as positive index to get:
[tex]{r}^{ - 7} + {s}^{ - 12} = \frac{1}{ {r}^{7} } + \frac{1}{ {s}^{12} } [/tex]
We now find LCM to get:
[tex]{r}^{ - 7} + {s}^{ - 12} = \frac{ {r}^{7} + {s}^{12} }{ {r}^{7} {s}^{12} } [/tex]
Therefore the simplified form of the given expresion is:
[tex] \frac{ {r}^{7} + {s}^{12} }{ {r}^{7} {s}^{12} } [/tex]
But from the provide option, they only want us to rewrite as positive index without simplifying further
Tobias is making scones. The recipe calls for 2/3 cup of flour to make 6 scones. What is the unit rate for cups of flour per scone? For scones per cup of flour? Use pencil and paper. Show or describe at least two ways to find the unit rate for scones per cup of flour.
Answer:
A. 1/9 cup of flour per scone.
B. 9 scones per cup of flour.
Step-by-step explanation:
We're given that Tobias uses 2/3 cup of flour makes 6 scones.
A. The unit rate of cup of flour per scone will be the cup of flour used to make a particular number of scones divided by that number of scones. Mathematically,
U. R. = (cup of flour)/(number of scones)
U. R. = (2/3)/6= 2/(3 *6)
U. R. = 2/18 = 1/9 or 0.11 scones per cup of flour.
B. (i) Method 1
Following the same method we used in (A) above, we need to divide the number of scones by the cup of flour used to make said number of scones. Mathematically,
U. R. = (number of scones)/(cup of flour)
U. R. = 6/(2/3) = (6 * 3)/2
U. R. = (6 * 3)/2 = 18/2
U. R. = 9 scones per cup of flour.
(ii) Method 2
Let the number of scones that can be made with 1 cup of flour(Unit rate for number of scones per cup of flour) be x. Then:
2/3 cup of flour = 6 scones
1 cup of flour = x scones
By cross multiplying and solving:
x = (6 * 1) / (2/3)
x = (6 * 3) / 2
x = 18/2 = 9 scones per cup of flour.
Simplify the expression 3^-8 × 3^4.
Answer:
Step-by-step explanation:
3^-8 × 3^4
Following the indices rule
a^y × a^z = a^(y+z)
:- = 3^(-8+4)
= 3^-4
= 1/3⁴
= 1/81
I’m so confused geometry
x=50 and y=10
because of vertical angles: 3y=x-20
and we also have 3y+5x-100=180 , if we simplify we get 3y=280-5x
we can combine the two equations and get x-20=280-5x and when we solve we get x=50 degrees
then we can plug that into the first equation and get 3y=30, and y=10 degrees
Answer:
x = 50°
y = 10°
Step-by-step explanation:
The vertical angles theorem states that angles across from each other must be equal.
This means that:
3y = x - 20° or x = 3y + 20°
5x - 100° = y + 140°
Start with the second equation
5x - 100° = y + 140°
Add 100° to both sides of the equation
5x = y + 240°
Now, substitute the value of x found at the beginning into this equation
5(3y + 20°) = y + 240°
Multiply
15y + 100° = y + 240°
Subtract 100° from both sides of the equation
15y = y + 140°
Subtract y from both sides of the equation
14y = 140°
y = 10°
x = 3y + 20 = 3(10) + 20 = 30 + 20 = 50°
Hope this helps :)
n(17+x)=34x-r solve for x
Answer:
[tex]x=\frac{-17n-r}{(n-34)}[/tex]
Step-by-step explanation:
Given:
[tex]n(17+x)=34x-r[/tex]
Taking the terms of x to one side.
[tex]17n+nx=34x-r\\[/tex]
[tex]nx-34x=-17n-r\\\\x(n-34)=-17n-r\\\\x=\frac{-17n-r}{(n-34)}[/tex]
The value of x is:
[tex]x=\frac{-17n-r}{(n-34)}[/tex]
NEED HELP ASAP
Simplify each expression. The simplified expression should have no exponents. (I will give you the highest amount of points)
Sorry there is a few questions. I missed a day at school and need to catch up
9)
- 12xy/7x⁴ × 21x⁵y²/4y = - 9x²y²
10)
- 3x⁵/x¹³ × 2x¹⁰y/15y² = -2x²/5y
11)
4xy¹¹/x⁷y⁶ × 6x⁸y/8x³ = 3y⁶/x
12)
y¹⁰/2x³ × 20x¹⁴/xy⁶ = 10x¹⁰y⁴
13)
5x⁻²/3x × 2y³/x¹⁰ = 10y³/3x¹³
14)
(5xy/8x⁻¹y²)² × 26y³/5x²y⁵ =
= 25x⁴/64y² × 26/5x²y²
= 65x²/32y⁴
Find the area of the hexagon.
A) 36 in2
B) 52 in2
C) 78 in2
D) 144 in2
Answer: C) 78 in2
Step-by-step explanation:
The polygon is divided into two trapezoids with equal measurements.
Area of a trapezoid:
1
2
(b1 + b2)h
Since the area of the hexagon equals the area of two trapezoids with equal measurements, do not multiply by 1/2.
(b1 + b2)h
(10 + 16)3
26(3)
78 in2
Answer:
Answer: C) 78 in2
Step-by-step explanation:
Lindsay is 555 years younger than Mark. Seven years ago, the sum of their ages was 313131.
Let l be Lindsay's age and let mmm be Mark's age.
Which system of equations represents this situation?
Choose 1 answer:
Answer:
System:
Equation 1: L = M - 5Equation 2: L + M = 45Explanation:
Rewrite the question to delete the typos:
Lindsay is 5 years younger than Mark. Seven years ago, the sum of their ages was 31. Let l be Lindsay's age and let mmm be Mark's age.Which system of equations represents this situation?1. Name your variables:
Lindsay's age: LMark's age: M2. Translate each verbal statement into an algebraic expression:
a) Lindsay is 5 years younger than Mark
L = M - 5 ← first equationb) Seven years ago, the sum of their ages was 31
L - 7 + M - 7 = 31 Simplify:L + M - 14 = 31
L + M = 31 + 14
L + M = 45 ← second equation
3. Write the two equations:
System:
Equation 1: L = M - 5Equation 2: L + M = 45
The system of equations representing Lindsay being 5 years younger than Mark, and the sum of their ages seven years ago being 31, are: I = m - 5 and I + m = 45.
To represent this situation, we can set up the following system of equations:
I = m - 5 (Lindsay is 5 years younger than Mark)(I - 7) + (m - 7) = 31 (Seven years ago, the sum of their ages was 31)Let's simplify the second equation:
I - 7 + m - 7 = 31, simplifies to:
I + m - 14 = 31, then:
I + m = 45
So, the system of equations representing this situation is:
I = m - 5I + m = 45Simplify eighth root of y squared
Answer:
The simplified expression is y raised to the 2/8 power
Step-by-step explanation:
Let's recall that one of the properties of fractional exponents is:
x ^ a/b = ᵇ√x ᵃ
therefore,
⁸√y² = y ^2/8
The simplified expression is y raised to the 2/8 power
Erica ate 5/8 of a sandwich. Sven ate 2/5 of a sandwich. Micah ate 3/4 of a sandwich. Gabe ate 6/12 of a sandwich. Who ate the most of his sandwich?
The answer is that Micah ate more of a sandwich because he is 1/4 from eating the whole thing.
Answer:
Micah ate the most of their sandwich.
Step-by-step explanation:
If you convert all of the fractions into a percentage,
Erica ate 62.5% of a sandwich
Sven ate 40% of a sandwich
Micah ate 75% of a sandwich
Gabe ate 50% of a sandwich
Micah ate the most of their sandwich.
4. Calculate the distance Kris walks in 8 days
if she walks 7/8mile each day.
Answer:
I have two ideas on how to solve the question for anyone that befit you you choose I hope it helps
but I prefer the second one.
Kris walks a total of 7 miles over the course of 8 days by multiplying the daily walking distance of 7/8 mile by 8 days.
To calculate the total distance Kris walks in 8 days, where she walks 7/8 mile each day, we need to perform a multiplication of the daily distance by the number of days.
The calculation will be:
7/8 mile/day * 8 days = 7 miles.This is because each 7/8 gets multiplied by 8, effectively cancelling out the denominator of 8, resulting in 7 whole miles.
Therefore, Kris walks a total of 7 miles over the course of 8 days.