Answer:
x = 10
y = 50
Step-by-step explanation:
9x - 70 = x + 10
8x - 70 = 10
8x = 80
x = 10
3y - 60 = 90
3y = 150
y = 50
Answer:

Step-by-step explanation:
Given the function
and the output
when
, we can write the equation:



We can insert the value of
into the function to verify the output equals
:



∴ We have verified that 
Hope this helps :)
Answer:
3/8 room
Step-by-step explanation:
Given data
We are told that 2 rolls of wire are needed to wire 1 room
Hence if 1 room needs 2 rolls
x rooms will need 3/4 rolls
cross multiply we have
2x= 3/4
Multiply both sides by 1/2
x= 3/4*1/2
x= 3/8 room
Answer:
I don't know what you need
Step-by-step explanation: