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fgiga [73]
3 years ago
11

3(d-8)-5=9(d+2)+1 need help

Mathematics
1 answer:
nika2105 [10]3 years ago
5 0

Answer:

d=-8

Step-by-step explanation:

1) Use the Distributive property on the left side of the equation:

3d-24-5=9(d+2)+1

2) Use the Distributive property on the right side of the equation:

3d-24-5=9d+18+1

3) Combine alike terms:

3d-29=9d+19

4) add a 29 to both sides:

3d=9d+48

5) Subtract a 9d from both sides:

-6d=48

6) Divide both sides by -6:

d=-8

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goblinko [34]

Step-by-step explanation:

Given that,

The length of the shelf = 24 inches

The width of the shelf = 7 inches

Area of the shelf, A = 24 × 7

= 168 inch²

When the width of the shelf is doubles,

New width = 14 inch

New area, A' = 14×24

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It means,

A' = 2(A)

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3 years ago
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xxTIMURxx [149]

Answer:

Step-by-step explanation:

1. 5

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2 years ago
If 7 is the mean of 10,3,4,a,6,9 and 10.find the value of a
nydimaria [60]

Answer:

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Step-by-step explanation:

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10, 3, 4, a, 6, 9, 10

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If, to find the mean is: 10 + 3 + 4 + a + 6 + 9 + 10= 7a ÷ 7, then: 10 +3 + 4+ 6 + 9 +10= 42

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Answer:

The answer is A.

Step-by-step explanation:

I learned it before.

Hope this helps.

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Read 2 more answers
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