I think boys =18
girls=12
boys :x
girls:y
student:z
the number of group for the boys :n
the numberof group for the girls :m
so x=(3/5)*z
y=(2/5)* z
x/y=3/2
3y-2x=0
(1/10)*z*n=(3/5) *z
so n=6
(1/5)*z*m=(2/5)* z
put x=(1/10)*z*6
y=(1/5)*z*2
into 3y-2x=0 and z=30
z=30 so x=(1/10)*30*6=18
y=(1/5)*30*2=12
Answer:
990
Step-by-step explanation:
M/J = 2/7
J = 3/4 L
L = M + 396
7M = 2J
J = 3.5M
3.5M = 3/4 L
L = 4/3(3.5M)
L = 14/3 M
14/3 M = M + 396
11/3 M = 396
M = 3/11 × 396
M = 108
L = M + 396
L = 108 + 396
L = 504
J = 3/4 L
J = 3/4 × 504
J = 378
M + L + J = 108 + 504 + 378 = 990
Answer:
7
Step-by-step explanation:
add whats in the ( ) then divide by 8
Answer: 1/12 of total pizza
Step-by-step explanation:
Mrs. Johnson first cut the pizza into equal sections of three.
This means that each section is 1/3 of the total pizza.
She then gave 1 section to her four children to share.
Each child will therefore get:
= 1/3 ÷ 4 children
= 1/3 * 1/4
= 1/12 of the total pizza
<em>Hint: When dividing a fraction by a number, you can instead multiply that fraction by the inverse of that number.</em>
