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3 years ago

Find the output y when the input x is 5 Y=5x-3 Y=

Mathematics

2 answers:

DanielleElmas [232]3 years ago

6 0

5(5) -3
25-3
=22

Hope this helps!

lisabon 2012 [21]3 years ago

4 0

The answer is y=22 I think

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Find the solution of this system of equations

gulaghasi [49]

$6x = 90 +3y\\
x - 3y = 50\\\\
-6x+3y=-90\\
\underline{x-3y=50}\\
-5x=-40\\
x=8\\\\
8-3y=50\\
3y=-42\\
y=-14
$

4 0

3 years ago

Read 2 more answers

What is the value of the x-intercept for the graph of 4x-5y=40?

Crank

I believe its 4/5 because when you isolate y, you have to divide 5 and 4 but you Can just leave it in its decimal form.

6 0

3 years ago

Rewrite the equation by completing the square.

dlinn [17]

Answer:

(x + 1/2)^2 = 289/4

Step-by-step explanation:

x^2+x-72=0

Write like this:

(x + ___)^2 = ___

put 72 on other side

x^2 + x = 72

x^ + x + (1/4) = 72 + (1/4)

(x + 1/2)^2 = 289/4

x + (1/2) = 17/2

8 0

3 years ago

Derrick earned 1472 during the 4 weeks he had his summer job. If he earned the same amount each week, how much did he earn each

Agata [3.3K]

368 he earned each week.

During the 4 weeks he earned 1472, to be able to know the amount he earn each week. We simply, divide 1472 into 4 because in a month there are 4 weeks. In dividing,1472/4 = 368. The above answer is correct.

5 0

3 years ago

Read 2 more answers

A rectangular piece of paper is 44 cm long and 20 cm wide. A cylinder is forms by rolling the paper along its length. Find its v

Musya8 [376]

Answer:

3081.24 cm³ (nearest hundredth)

Step-by-step explanation:

<u>Formulas</u>

$\textsf{Circumference of a circle}=\sf 2 \pi r\quad\textsf{(where r is the radius)}$

$\textsf{Volume of a cylinder}=\sf \pi r^2 h \quad\textsf{(where r is the radius and h is the height)}$

If a rectangular piece of paper is rolled along its length to form a cylinder:

circumference = 44 cm
height = 20 cm

To calculate the volume of the formed cylinder, determine the radius by using the circumference formula:

$\implies \sf 2 \pi r = 44$

$\implies \sf r = \dfrac{44}{2 \pi}$

$\implies \sf r =\dfrac{22}{\pi}$

Substitute the round radius into the formula for Volume and solve for V:

$\implies \sf V=\pi \left(\dfrac{22}{\pi}\right)^2(20)$

$\implies \sf V=\pi \left(\dfrac{484}{\pi^2}\right)(20)$

$\implies \sf V=\left(\dfrac{484}{\pi}\right)(20)$

$\implies \sf V=\dfrac{9680}{\pi}$

$\implies \sf V=3081.239698...cm^3$

Therefore, the volume of the cylinder is 3081.24 cm³ (nearest hundredth).

8 0

2 years ago