3 years ago

Rewrite the expression with parentheses to equal the given value 3×4-1+2

Mathematics

1 answer:

zhenek [66]3 years ago

3 0

2 * 4 - 1 +2 1. Multiply the numbers

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12 - 1 +2 2. Calculate the sum

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Final Answer = 13

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Plz help me, and explain how you did it, because they are for a 5th grader. :)

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Parker is laying pavers to build a patio in his backyard. Each square paver measures 2 feet on each side. He would like the pati

Alex787 [66]

Answer:

32 pavers

Step-by-step explanation:

step 1

Find out the area of one square paver

The area of a square is

$A=s^{2}$

where

s is the length side of the square

we have

$s=2\ ft$

substitute

$A=2^{2}\\A=4\ ft^{2}$

step 2

Find out the area of the rectangular patio

we know that

The area of a rectangle is

$A=LW$

we have

$L=16\ ft\\W=8\ ft$

substitute

$A=(16)(8)\\A=128\ ft^2$

step 3

Find out the number of pavers needed to build the patio

Divide the area of the rectangular patio by the area of one paver

$128\ ft^2/4\ ft^{2}=32\ pavers$

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4 years ago