Answer:
There are many way to solve this problem. But I'm using one X = 5 and X = 8.
Step-by-step explanation:
5 x 10 = 50
50 + 2 = 52
52 + 12 = 64
Heads up
4 + 8 = 12
Sphere: 0
Cone: 1
. . . . .
Answer:
- It takes A 30 days to finish the work alone
- It takes B 20 days to finish the work alone
- It takes C 60 days to finish the work alone
- Working together, it takes them 10 days to finish the work
Step-by-step explanation:
Given;
From given equations above;
solve for B;
Solve for C;
When they work together;
Answer:
x = 6
Step-by-step explanation:
An inverse variation is
xy = k where k is the constant of variation
8*9 = k
72 = k
xy = k
Let y = 12
x*12 = 72
Divide each side by 12
12x/12 =72/12
x = 6