Ms. graves gave her class 12 minutes to read. carrie read 5 1/2 pages in that time. at what rate, in n pages per hour, did carrie read?

60 minutes (1 hour) ÷ 12 minutes = 5

So doing 5 1/2 × 5 will give you the amount of pages Carrie read in n pages per hour.

(5 1/2 × 5 = 27.5 pages per hour.) 

1. isolate the variable, in this case, d. subtract 35.5 on both sides of the equation.2. 52 subtracted by 35.5 is 16.53. therefore your answer would be d= 16.5this is the basics of pre algebra, isolating variable through adding, subtracting, multiplying, and dividing, if you have any other questions to ask just comment!