Melba rode her bike 7 / 8 mile in 1/ 4 hour what is the unit rate in miles per hour
x=28/8=3 1/2
x=28/8= 3 1/2
its not 3 1/2
To find the unit rate in miles per hour, we need to divide the distance (in miles) by the time (in hours).
In this case, Melba rode her bike for 7/8 mile in 1/4 hour.
To divide fractions, we multiply the first fraction by the reciprocal of the second fraction.
So,
7/8 mile / 1/4 hour
= 7/8 mile * 4/1 hour
= 7/2 mile per hour
Therefore, the unit rate is 7/2 mile per hour.
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Use a proportion.
(7/8) / (1/4) = x / 1
(1/4)x = (7/8)
x = (7/8) / (1/4)
x = (7/8) * 4
x = 28/8 = 3 1/2 mph