Question

harper rides her bike 15 miles in 3 hours if she rides at a constant speed, select the answers below that equivalent ratios to the speed she rides. select all ratios that are equivalent

Answer 1

First let's find her speed, dividing the number of miles by the amount of time:

$\text{speed}=\frac{15}{3}=5\text{ mph}$

Now, let's calculate the speed for each option:

1) 20 miles in 4 hours

$\text{speed}=\frac{20}{4}=5\text{ mph}$

2) 25 miles in 6 hours

$\text{speed}=\frac{25}{6}=4.17\text{ mph}$

3) 10 miles in 3 hours

$\text{speed}=\frac{10}{3}=3.33\text{ mph}$

4) 5 miles in 1 hour

$\text{speed}=\frac{5}{1}=5\text{ mph}$

So the correct options are 1) and 4).