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vekshin1
3 years ago
15

kelly is knitting a scarf for her brother. it took her 1/3 hour to knit 3/8 foot of the scarf. How fast is Kelly's knitting spee

d, in feet per hour?
Mathematics
2 answers:
NARA [144]3 years ago
7 0

Answer:

\frac{9}{8} feet per hour fast is Kelly's knitting speed

Step-by-step explanation:

Unit rate defined as the rates are expressed as a quantity 1 such as 4 meter per seconds or 4 miles per hour.

As per the statement:

Kelly is knitting a scarf for her brother. it took her 1/3 hour to knit 3/8 foot of the scarf.

She took /3 hour to knit 3/8 foot of the scarf.

Then by definition of unit rate we have;

\text{Unit rate per hour} = \frac{\frac{3}{8} }{\frac{1}{3} } =\frac{3}{8} \cdot 3 = \frac{9}{8} feet

Therefore, \frac{9}{8} feet per hour fast is Kelly's knitting speed.

marysya [2.9K]3 years ago
5 0
9/8 per hour 
hope this helps if so please mark me brianliest
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