Sarah is training to be in a long distance bicycle race. If she bicycles at a constant rate of 25 miles per hour how far will she ride in 3 hours?

A.8.5
B.25
C.50
D.75
D?

Rodney made 20 free throws out of his first 25 attempts. If he continues to throw at the same rate how many free throws will he make after shooting 75 free throws?
A.60
B.65
C.70
D.85
C?

Gayle shipped out 100 books in the last 3 weeks. If she continues to ship books at the same rate how many books will she ship out during the next 12 weeks?
A.36
B.300
C.400
D.1200
D?

Your answers for the free throws and books are wrong.

A for the free throws question and C for the books question?

Now they're all correct.

First one is right, the last two are wrong.

How are you doing these?
Why not use a simple ratio

1/25 = 3/x
x = 75 , you had that one correct

20/25 = x/75
25x = 1500
x = 60 ----- which is A

100/3 = x/12
3x= 1200
x = 400 ---- which is C

Thank you Ms. Sue and Reiny.

You're welcome, Jerald.

For the first question, the given information is that Sarah bicycles at a constant rate of 25 miles per hour. We need to find out how far she will ride in 3 hours. To find the distance, we can use the formula:

Distance = Speed × Time

In this case, the speed is 25 miles per hour, and the time is 3 hours. Plugging in these values into the formula, we get:

Distance = 25 miles/hour × 3 hours = 75 miles

So, Sarah will ride 75 miles in 3 hours. Therefore, the correct answer is D. 75.

For the second question, Rodney made 20 free throws out of his first 25 attempts. We need to determine how many free throws he will make after shooting 75 free throws in total. To find this, we can establish a proportion based on the given information:

20 successful throws / 25 attempts = x successful throws / 75 attempts

To solve for x, we can cross-multiply:

20 × 75 = 25x
1500 = 25x
x = 1500 / 25
x = 60

Therefore, Rodney will make 60 free throws after shooting 75 attempts. Hence, the correct answer is A. 60.

For the third question, Gayle shipped out 100 books in the last 3 weeks. We need to determine how many books she will ship out during the next 12 weeks if she continues at the same rate. To find this, we can establish a proportion based on the given information:

100 books / 3 weeks = x books / 12 weeks

To solve for x, we can cross-multiply:

100 × 12 = 3x
1200 = 3x
x = 1200 / 3
x = 400

Therefore, Gayle will ship out 400 books in the next 12 weeks if she continues at the same rate. Hence, the correct answer is C. 400.