Answer:
17 students per teacher, 9 students per tutor. You need 10 tutors if the school had 90 students.
Step-by-step explanation:
51 students divided by 3 teachers = 17 students per teacher.
45 students divided by 5 tutors = 9 students per teacher.
If there are 9 students per tutor 9 * 10 = 90 so ten tutors
8x^15
(2x5)3
=(2x5)3
=2x5*2x5*2x5
=8x15
B, Courtney should use the 15% off coupon
Simplify
Method 2 :
By rationalizing the denominator
560 students
700 x 0.8 = 560