First you would take 312 and divide it by 13. Using that answer and put it over 1. Then times the answer that you just got by twelve. Then put that in a mixed number in its simplest form.
Answer:
2.4 days
Step-by-step explanation:
Time working together,t ,is
1/t = 1/a+ 1/b where a and b is the times working alone
1/t = 1/4 + 1/6
Multiply each side by 12t to clear the fractions
12t( 1/t )= 12t(1/4 + 1/6)
12 = 3t+2t
12 = 5t
Divide by 5
12/5 = 5t/5
2 2/5 =t
2.4 days
If Levi has $30, and he spends 1/5 of it on his movie ticket, we can figure out how much 1/5 is by dividing 30 by 5.
30 divided by 5 = 6
Now Levi has $6. He than spends 1/3 of that on popcorn. We can divide 6 by 3.
6 divided by 3 = 2
Levi is left with $2.
For now I don't know the answer to this problem of yours.
Always complete the math inside a bracket first.
x-4x = -3x
So the answer is d. 3x - 5y
