3 years ago

Rate of change for 6y=8x-40

Mathematics

1 answer:

larisa [96]3 years ago

3 0

Hello,

y=8/6 x-40/6
==>rate=8/6=4/3

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111 pieces of soda

Step-by-step explanation:

step 1

Find the area of the rectangular backyard

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$A=LW$

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substitute

$A=(\frac{113}{6})(\frac{52}{5})$

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step 2

Find the area of one piece of sod

The area of the rectangular piece of sod is

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where

$L=1\frac{1}{3}\ yd=\frac{1*3+1}{3}=\frac{4}{3}\ yd$

$W=1\frac{1}{3}\ yd=\frac{1*3+1}{3}=\frac{4}{3}\ yd$

substitute

$A=(\frac{4}{3})^2\\\\A=\frac{16}{9}\ yd^2$

step 3

Find the pieces of sod needed

To find out how many whole pieces of sod will Jim need to buy to cover his backyard, divide the area of the backyard by the area of one piece of soda

$\frac{5,876}{30} : \frac{16}{9}=\frac{52,884}{480}=110.175$

Round up

111 pieces of soda

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