Answer:
x=3 and y=1
Step-by-step explanation:
subtract equation 2 from 1
then (2x+3y) -(2x+y) =9-7
2x-2x+3y-y =2
2y=2 therefore y=1
substitute y value in 2x+y=7
2x+1=7
2x=7-1
2x=6
x=3
Answer:
30$ for a pack of 15
Step-by-step explanation:
12$ ÷ 6 to get the price for 1 can, then use that to multiply by 15 to get how much 15 cans cost.
Answer:
Step-by-step explanation:
Given
Required
Simplify
Start by removing brackets
Collect Like Terms
Answer:
1,507.96
Step-by-step explanation:
V=πr2h
3=π·122·10
3≈1507.96447