Math, asked by abuzayna, 4 months ago

The Boardman family walked two over five of a mile in two over seven of an hour. What is their unit rate in miles per hour?

two-sevenths over two-fifths equals one and two-fifths miles per hour
two-sevenths over two-fifths equals five over seven mile per hour
two-fifths over two-sevenths equals one and two-fifths miles per hour
two-fifths over two-sevenths equals five over seven mile per hour

Answers

Answered by amitnrw
7

Given : The Boardman family walked two over five (2/5)  of a mile in two over seven (2/7)  of an hour.

To Find : What is their unit rate in miles per hour?

two-sevenths over two-fifths equals one and two-fifths miles per hour

two-sevenths over two-fifths equals five over seven mile per hour

two-fifths over two-sevenths equals one and two-fifths miles per hour

two-fifths over two-sevenths equals five over seven mile per hour

Solution:

Distance Walked = 2/5  miles

Time Taken = 2/7  hour

unit rate in miles per hour  = Speed

Speed = Distance / Time  

Speed  =  (2/5)/ (2/7)

=> Speed  =  7/5  miles / hr

=> Speed  = 1  2/5  miles / hr

(2/5)/ (2/7)   =  1  and 2/5  miles / hr

Two-fifths over two-sevenths equals one and two-fifths miles per hour

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