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natali 33 [55]
3 years ago
6

The length of a rectangle is (x plus 3) inches long, and the width is 3 2/5 inches. If the area is 15 3/10 square inches, write

and solve an equation to find the length of the rectangle??? Plz I will give you 100 points
Mathematics
1 answer:
IgorC [24]3 years ago
6 0

Answer: Explained in the step-by-step


Step-by-step explanation:

We want to isolate x, and remember, what we do to one side we do to the other:

(x+3) * 3  2/5 = 15  3/10

(x+3) * 3  2/5 divided by 3  2/5 = 15  3/10  divided by 3  2/5

x + 3 = 153/10 * 5/17

x + 3 = 765/170

x + 3 = 153/34

x + 3 = 4.5

x + 3 - 3 = 4.5 - 3

x = 1.5

Check:

(1.5+3) * 3  2/5 = 15  3/10

4.5 * 3  2/5 = 15  3/10

(3  2/5 = 3.4 and 15  3/10 = 15.3)

4.5 * 3.4 = 15.3

15.3 = 15.3

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Step-by-step explanation:

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1

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\boxed{\green{= 1}}

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