Question
brian can read 80 pages in 2 hours. How many pages can he read in 3.5 hours? show your work
A 560
B 140
C 11.43
D 45.71
A 560
B 140
C 11.43
D 45.71
Answers
GPT 3.5
To find out how many pages Brian can read in 3.5 hours, we can set up a proportion:
Pages / Time = Pages / Time
Let's call x the number of pages Brian can read in 3.5 hours. The proportion becomes:
x / 3.5 = 80 / 2
To solve for x, we can cross multiply:
2x = 80 * 3.5
2x = 280
Now, divide both sides of the equation by 2 to isolate x:
x = 280 / 2
x = 140
Therefore, Brian can read 140 pages in 3.5 hours.
The answer is option B: 140.
Pages / Time = Pages / Time
Let's call x the number of pages Brian can read in 3.5 hours. The proportion becomes:
x / 3.5 = 80 / 2
To solve for x, we can cross multiply:
2x = 80 * 3.5
2x = 280
Now, divide both sides of the equation by 2 to isolate x:
x = 280 / 2
x = 140
Therefore, Brian can read 140 pages in 3.5 hours.
The answer is option B: 140.