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skad [1K]
3 years ago
5

Dennis can walk 2.833 miles each hour . About how far can he walk in 3 hours and 15 minutes

Mathematics
1 answer:
Bezzdna [24]3 years ago
4 0

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

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<h3> The complete exercise is: "Write an expression using letters and/or numbers for each problem below"</h3>

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