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kramer
3 years ago
13

Simplify an expression for the premier of the rectangle shown with length 8.6 X +3 and width 5.2

Mathematics
1 answer:
KonstantinChe [14]3 years ago
8 0

Answer:

P = (17.2x+16.4)

Step-by-step explanation:

Given that,

Length, l = 8.6x+3

Width, b = 5.2

We need to find the expression for the perimeter of the rectangle. The formula for the perimeter of the rectangle is given by :

P=2(l+b)

Putting values of l and b in the above formula

P=2(8.6x+3+5.2)\\\\=2(8.6x+8.2)\\\\=2(8.6x)+2(8.2)\\\\=17.2x+16.4

So, the required perimeter of the rectangle is 17.2x+16.4.

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Y=6x-11 -2x-3y=-7 solve each system of equation by substitution
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Answer:

(2, 1 )

Step-by-step explanation:

Given the 2 equations

y = 6x - 11 → (1)

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Substitute y = 6x - 11 into (2)

- 2x - 3(6x - 11) = - 7 ← distribute and simplify left side

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- 20x + 33 = - 7 ( subtract 33 from both sides )

- 20x = - 40 ( divide both sides by - 20 )

x = 2

Substitute x = 2 into (1) for corresponding value of y

y = 6(2) - 11 = 12 - 11 = 1

Solution is (2, 1 )

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A music store 3,550 CDs. Each CD rack holds 15 CDs. How many racks does the store need to use to hold all the CDs?
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The point (-1,-4) is on the line given by which equation below ?
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