John runs a marathon (26.2 miles) in 4 hours. Determine how many miles he runs per hour if the proportional relationship is represented by 4y=26.2x.(1 point)

Question

Responses

7 mph
7 mph

104.8 mph
104.8 mph

6.55 mph
6.55 mph

0.15 mph

Answer 1

To determine how many miles John runs per hour, we need to solve the equation 4y = 26.2x for y, where y represents the number of miles he runs per hour.

Dividing both sides of the equation by 4, we get:

y = 26.2/4x

Simplifying this expression, we find:

y = 6.55x

Therefore, the correct answer is 6.55 mph.

Answer 2

The proportional relationship 15.24 centimeters in 6 inches is represented by 6y=15.24x. Determine the number of centimeters in 1 inch.(1 point)
Responses

3 centimeters
3 centimeters

91.44 centimeters
91.44 centimeters

2.54 centimeters
2.54 centimeters

0.39 centimeters

Answer 3

To determine the number of centimeters in 1 inch, we need to solve the equation 6y = 15.24x for y, where y represents the number of centimeters in 1 inch.

Dividing both sides of the equation by 6, we get:

y = 15.24/6x

Simplifying this expression, we find:

y = 2.54x

Therefore, the correct answer is 2.54 centimeters.