Solve for b: b/15=66/90

Mathematics

2 answers:

Alchen [17]3 years ago

6 0

Times 15 both sides
b=990/90
b=99/9
b=11/1
b=11

Fantom [35]3 years ago

6 0

First, you need to cross multiply. When you cross multiply, you should get:
90b = 990

Now divide both sides by 90 to get b by itself.

b = 11.

You should get an answer of: b = 11

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Step-by-step explanation:

DATA:

Length of strips Eli need is 2.5 feet long

Length of roll of ribbon is 7.5 feet long

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SOLUTION:

To determine how many strips can be cut, divide total length of roll of ribbon by the length of strips needed.

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Refer to the figure shown below.

Top view:
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Side view:
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