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Maru [420]
3 years ago
12

Shelby loves to knit scarves. Normally, it takes her 15 minutes to knit 5 inches of a scarf. She plans to make a scarf that is 3

0 inches long.
If she knits at the same rate, how many minutes will it take Shelby to knit the scarf?
Mathematics
1 answer:
MariettaO [177]3 years ago
7 0

Answer:

90 minutes

Step-by-step explanation:

let x=amount of time it would take for Shelby to knit the scarf

\frac{15}{5} =\frac{x}{30}

cross multiply

15*30=5x

450=5x

450/5=x

x=90

It would take Shelby 90 minutes to knit a scarf that is 30 inches long.

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