Suppose 45% of the graduating class in a certain high school goes on to college. If 270 students from this graduation class are going on to college, how many students are from this graduating class?

600 students are from this graduating class.

Step-by-step explanation:

Set up an equation:

Variable x = total number of students

45/100 = 270/x

Cross multiply:

45 × x = 100 × 270

45x = 27,000

x = 600

$15.40 per mile

step-by-step explanation:

you have to round up to 4 because 6 is over 5 so you have to round the 3 up to 4

answer: 5 17/33 % (to the tenth)

step-by-step explanation:

he guessed: 34.5 pounds

actual weight is 32.7

there for he is off:

34.5 -32.7 = 1.8

32.7 is the 100%

1.8 represents %? of 32.7

therefore:

32.7   - 100%

1.8     -     x%

x= 1.8*100%/32.7% = 18*100%/327%

x=1800%/327%   = (5 165/327)%

to the tenth:

5 17/33 %