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Andrei [34K]
3 years ago
7

The width of a rectangle is 7 inches shorter than its length. The area is 78 square inches. What are the dimensions of the recta

ngle?
Mathematics
1 answer:
harina [27]3 years ago
6 0

Answer:

Step-by-step explanation:W = L - 7

WL = 78

(L-7)L = 78

L^2 - 7L - 78 = 0

Factorize: (L-13)(L+6) = 0

L = 13 or -6

A length cannot be negative, so the length must be 13 miles.

The width is 13-7 = 6 miles.

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Step-by-step explanation:

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Ten members of Balin’s soccer team ran warm ups for practice. Each member ran the same distance. Their combined distance was Sta
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Answer:

Each member ran (1/12) of a mile.

Step-by-step explanation:

We have 10 members of Balin's soccer team.

Each one of them ran a distance D.

We know that their combined distance was 5/6 of a mile.

And if each one of them ran the same distance D, then the combined distance is ten times D, or :

10*D

and this is equal to 5/6 of a mile, then we get the equation:

10*D = (5/6) of a mile.

We want to solve this for D, so we can divide both sides by 10:

10*D/10 = (5/6)/10 of a mile.

D = (5/10*6) of a mile

D = (5/10)/6 of a mile

D = (1/2)/6 of a mile

D = (1/2*6) of a mile

D = (1/12) of a mile.

This means that each member ran (1/12) of a mile.

3 0
3 years ago
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Kam
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Answer:

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3 years ago
A plane descends 1,200 feet then it descends 500 feet what is the answer
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1700 ft

Step-by-step explanation:

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6 0
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