is the problem 2 1/2 + 3 1/4 + 5/6 correct if the answer of what I got is 5 7/12 or would it be 6 7/12

Mathematics

1 answer:

aev [14]3 years ago

4 0

Its gonna be 229/12, u r gonna find the lcm of the 3 denominators which is 12 and complete the work

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Bezzdna [24]

well, let's split the hours in minutes, so since 1 hr is 60 minutes, so he can walk 2.833 miles in 60 minutes, well, 3 hrs is 3*60 = 180 minutes, then we add 15 minutes, that's 195 minutes.

if he can walk 2.833 miles in 60 minutes, how long will it be for 195 minutes?

$\bf \begin{array}{ccll} miles&minutes\\ \cline{1-2} 2.833&60\\ x&195 \end{array}\implies \cfrac{2.833}{x}=\cfrac{60}{195}\implies \cfrac{2.833}{x}=\cfrac{4}{13} \\\\\\ 36.829=4x\implies \cfrac{36.829}{4}=x\implies 9.20725 = x$