I read 15 pages in 90 minutes. At the same rate how many pages can i read in 4 hours? My textbook says 40 pages but I do not understand how to get there
15/1.5 = x/4
Solve for x.
To find out how many pages you can read in 4 hours at the same rate as reading 15 pages in 90 minutes, there are a couple of steps you can take:
Step 1: Convert 4 hours to minutes. Since 1 hour is equal to 60 minutes, you can multiply 4 by 60 to get 240 minutes.
Step 2: Determine the ratio of pages read to time spent reading in the first scenario. From your given information, you read 15 pages in 90 minutes. To find the ratio, divide the number of pages (15) by the time in minutes (90). This gives you a ratio of 15 pages / 90 minutes.
Step 3: Use the ratio to calculate the number of pages you can read in 240 minutes. Multiply the ratio (15 pages / 90 minutes) by the new time in minutes (240). This calculation will give you the number of pages you can read in 240 minutes.
Let's do the math:
Ratio = 15 pages / 90 minutes
Pages in 240 minutes = Ratio * 240 minutes
Pages in 240 minutes = (15 pages / 90 minutes) * 240 minutes
Pages in 240 minutes = (15 * 240) / 90
Pages in 240 minutes = 3600 / 90
Pages in 240 minutes = 40
Therefore, you can read 40 pages in 4 hours at the same rate as reading 15 pages in 90 minutes.