B + g = 120
b = 3/5g
3/5g + 5/5g = 120
8/5g = 120
g = 120 / (8/5)
g = 120 * 5/8
g = 600/8 = 75 <== 75 girls
b = 3/5g
b = 3/5(75)
b = 225/5 = 45 <=== 45 boys
Bob had 36 apples
he wanted to equally divide them among himself and his 2 friends (3 people total)
how many apples did each one get?
36/3=12, each person got 12 apples
Step-by-step explanation:
it means : turn it upside down.
the reciprocal is 11/4.
the original fraction multiplied by its reciprocal is always 1.
Answer:
Step-by-step explanation:
Answer:
12 red balls
4 yellow balls
2 blue balls
2 green balls
Step-by-step explanation:
set no. of yellow, blue, red and green ball as y, b, r, g respectively
y=2b
r=3y
g=b
y+b+r+g = 20 (translate all of them into b (smallest in qty)
2b + b + 3(2b) + b = 20
10b = 20
b =2
y = 4, r = 12, b =2, g =2