Answer:
I suppose C?
Step-by-step explanation:
Yes. I just did this question on a test actually
Let x be the number of adult tickets sold and 84 - x be the number of children tickets.
105x + 60(84-x) = 7155
Once you find x (number of adult tickets), find the children tickets with 84 - x
Since both equations define y, they should be equivalent.
3x+7=x-9
2x+7=-9
2x=-16
x=-8
Plug x in
y=(-8)-9
y=-17
Final answer: (-8,-17)
He used 11 quarts out or 3 gallons .
I know because in 1 <span>gallon</span> there are 4 quarts .
You do 4*3 =12.
Than you -1 from 12 and get 11.
So,Your answer is He used 11 quarts out of 3 gallons.
Hope that helped.