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2 years ago

Please help me its about Solving by substitution

Mathematics

1 answer:

Vera_Pavlovna [14]2 years ago

3 0

Answer:

x=-2 y=3

Step-by-step explanation:

The substitution is basically given to you. Exchange x from the second equation with y-5

Once that is done and you combine the parentheses you get:

2y-10+y=-1

Add 10 on both sides of the equal sign

You get:

3y=9

Divide both sides by 3

You get:

y=3

To check your work you can substitute y in the second equation with 3 and solve it that way to get x=-2 (x equals negative two)

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rodikova [14]

Answer:

Dimensions → (5 inches × 4 inches)

Step-by-step explanation:

Scale factor used for the drawing by Steffie = $\frac{1}{3}$

Since, scale factor = $\frac{\text{Dimension of the drawing}}{\text{Actual dimension}}$

For Steffie,

Actual length of the crate = $\frac{\text{Dimension of the drawing}}{\text{Scale factor}}$

= $\frac{15}{\frac{1}{3}}$

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= 4 inches

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3 years ago

A tennis court measures 23.2 m by 12 m. What is its perimeter?

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aleksandrvk [35]

Answer:

Correct Answer is B

Step-by-step explanation:

y-4=6

+4. +4

y=10

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Answer:

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Step-by-step explanation:

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