In the x quarts of 2% fat milk, there is 0.02x quarts of fat.
in the y quarts of 4% fat milk there is 0.04y quarts of fat.
together, there is (x+y) quarts of milk, and 0.24 quarts of fat.
the equations are:
x+y=9
0.02x+0.04y=0.24
multiply the first equation with 0.02: 0.02x+0.02y=0.18
subtract this new equation from equaition 2 to eliminate x:
0.04y-0.02y=0.24-0.18
0.02y=0.06
y=3
x=9-3=6
x is twice as much as y.
He used twice as much as the 2% fat milk than the 4% fat milk.
so the first choice is the correct answer.
Answer:
The silver is now 50 years old and the gold coin is 18 years old
Step-by-step explanation:
first the silver was 32 years old , and it said it would be three times as old as the gold coin, to find the gold coin is to divide 32 and 3 together, that would be 10.6 but you can round the number up, you get 10 years.
you now can just get add 8 years to the 32 and 10
that would be 50 years old silver coin and 18 years for the gold coin.
I honestly have the same question help!!
Answer:
(0.5,-6)
Step-by-step explanation:
mid point=(x1+x2)/2
=(-3+4)/2
= 1/2
=0.5
midpoint=(y1+y2)/2
=(-9+(-3))/2
=(-9-3)/2
=--12/2
=-6
Multiply $1.50 with the $12 and get $13.10
