Answer: y=2
Step-by-step explanation:
2x+3y=14 - 2x-y=6 = 4y=8
y=2
If you need x, just insert y into the equation and work out x from there
2x-2=6
2x=8
x=4
Answer:
8.7%
Step-by-step explanation:
Well the net sales of Quarter 1 = 115 whilst the net sales of Quarter 2 = 125.
So the difference in the 2 numbers is 125-115 = 10
To find percentage change, you do 10/115 = 0.0869565217
Then, 0.0869565217 x 100 = 8.7% change to 1 decimal point.
So your percentage change is 8.7%.
Answer:
nothing
Step-by-step explanation:
nothing
For the first one his car used 8/340 or 2/85 gallons for one mile.
After the fix, his car 7/350 or 1/50 gallons for one mile.
Then you subtract 1/50-2/85 to get (17-10)/850 or 7/850.
You multiply this by 4 to get 28/850 which is $0.0329411
Since it is asking for cents you multiply by 100 to get approximately 3 cents.
