Solve the system of equations.

1 answer:

3 0

Note: in the 2nd eqn we are given a formula for x: x = 2y-15. Sub this result into the first eqn; doing so will eliminate x:

-5(2y-15)+4y =3

-10y + 75 + 4y = 3, so -6y = -72. Then y = 12. Solution is (9,12).

Check this by subst.:

Is -5(9)+4(12) = 3?
Is -45 + 48 = 3? YES.

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abruzzese [7]

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Fed [463]

Answer:Length: 27m

Step-by-step explanation:

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Claire has a hot tub with a diameter of 7 feet. She wants to purchase a cover to protect the hot tub. What is the area of the co

lara [203]

She needs to purchase a cover to protect the hot tub of an area of 38.5 square feet.

<h3>What is a circle?</h3>

It is a locus of a point drawn at an equidistant from the center. The distance from the center to the circumference is called the radius of the circle.

Claire has a hot tub with a diameter of 7 feet. She wants to purchase a cover to protect the hot tub.

The area of the circle is given by

$\rm Area = \dfrac{\pi}{4}d^2$

We have d = 7 ft, then the area of the circle will be

$\rm Area = \dfrac{3.14}{4}*7^2\\\\Area = 38.5 \ ft^2$

More about the circle link is given below.

brainly.com/question/11833983

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Sylvie finds the solution to the system of equations by graphing. y = x + 1 and y = x – 1 Which graph shows the solution to Sylv

Alexeev081 [22]

The only solution is when y=y

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1=-1

This is never true so there are no solutions. In this case it is due to the fact that both lines have the same slope and different y-intercepts. This means that they are parallel lines that have a constant distance between them.

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