Which of the following pairs of ratios are equivalent? 1) 38 : 133 and 16 : 56 , 2) 15 : 20 and 28 : 56

38 : 133 and 16 : 56 are equivalent

Step-by-step explanation:

Given

1) and

2) and

Required

Determine which is equivalent

1) and

Divide by 19

--- can't be further simplified

Divide by 8

Hence:

and are equivalent

2) and

Divide by 5

Divide by 28

Hence, both are not equivalent.

the first option is the answer.

168

step-by-step explanation:

first off, we know that he drove 3.5 hours at a rate of 48 mph.

knowing that, we want to see how many miles he drove all-together.

in this case, we can just multiply 48 by 3.5.

48 * 3.5 = 168