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3 years ago

Can someone please help me find the answer for this please. Thank you.

Mathematics

1 answer:

alex41 [277]3 years ago

4 0

Answer:

Step-by-step explanation:

Write down the expression exactly as it is given.

$\dfrac{3y - 9}{x} =$

Now write the expression again, but replace x with 3, and replace y with 6.

$= \dfrac{3 \times 6 - 9}{3}$

Now simplify the numerator using the correct order of operations.

$= \dfrac{18 - 9}{3}$

$= \dfrac{9}{3}$

Now divide 9 by 3.

$= 3$

Answer: 3

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Answer:

width = 4.5 m

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Step-by-step explanation:

okay so first you right down that L = 5 + 2w

then as you know that Area = length * width so you replace the length with 5 + 2w

so it's A = (5 +2w) * w = 63

then 2 w^2 + 5w - 63 =0

so we solve for w which equals 4.5 after that you solve for length : 5+ 2*4.5 = 14

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