3 boys + 8 girls = 11 students
3 boys/ 11 students = x boys /33 students
using cross products
3 * 33 = x*11
divide by 11
99/11 = x
x=9
There are 9 boys
7.50*4=30
40*4=160
160-30=130
130\4=32.5
so each boy has left 32.5 with him
Answer:
11
Step-by-step explanation:
56.50-7=49.50
49.50divided by 4.50=11
Answer:
11
Step-by-step explanation:
5 x 2 =10
10+6=16
16-1=15
