Rosalie is training for a marathon. She jogs for 30 minutes at a rate of 5 miles per hour, then she decreases her speed over a period of time and walks for 60 minutes at a rate of 3 miles per hour.

What is the range of this relation?

A.

0 ≤ y ≤ 5

B.

y ≤ 5

C.

y ≥ 0

D.

3 ≤ y ≤ 5

Question

Francesca Brennan

Mathematics

28 August, 10:36

Rosalie is training for a marathon. She jogs for 30 minutes at a rate of 5 miles per hour, then she decreases her speed over a period of time and walks for 60 minutes at a rate of 3 miles per hour.

What is the range of this relation?

A.

0 ≤ y ≤ 5

B.

y ≤ 5

C.

y ≥ 0

D.

3 ≤ y ≤ 5

+3

Answers (1)

Know the Answer?

Nicholas Hammond · Answer 1

3 ≤ y ≤ 5

Step-by-step explanation:

Rosalie is training for a marathon. She jogs for 30 minutes at a rate of 5 miles per hour, then she decreases her speed over a period of time and walks for 60 minutes at a rate of 3 miles per hour.

Therefore, the speed (y) of Rosalie ranges from 5 mph to 3 mph including the values.

So, the range of this relation is 3 ≤ y ≤ 5. (Answer)

Rosalie is training for a marathon. She jogs for 30 minutes at a rate of 5 miles per hour, then she decreases her speed over a period of time and walks for 60 minutes at a rate of 3 miles per hour.What is the range of this relation?A.0 ≤ y ≤ 5B.y ≤ 5C.y ≥ 0D.3 ≤ y ≤ 5

Rosalie is training for a marathon. She jogs for 30 minutes at a rate of 5 miles per hour, then she decreases her speed over a period of time and walks for 60 minutes at a rate of 3 miles per hour.

What is the range of this relation?

A.

0 ≤ y ≤ 5

B.

y ≤ 5

C.

y ≥ 0

D.

3 ≤ y ≤ 5