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?

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

4 0

3 years ago

7 groups of 8=6 groups of 8 plus

vredina [299]

Answer:

7 groups of 8 = 6 groups of 8 plus 1 group of 8

Step-by-step explanation:

1. Let's review the information given to answer the question correctly:

7 groups of 8 = 6 groups of 8 plus ?

2. Let's answer the question, this way:

How much are 7 groups of 8? 56 = 7 * 8

How much are 6 groups of 8? 48 = 6 * 8

What is the difference between 7 groups of 8 and 6 groups of 8?

(7 - 6 ) * 8 = 1 * 8

Therefore,

7 groups of 8 = 6 groups of 8 plus 1 group of 8

6 0

2 years ago