Answer:
41
Step-by-step explanation:
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:
I Think you Got All of them Right but the Last Two
Answer:
23
Step-by-step explanation:
Angles x and 157 are linear pairs,
x + 157 = 180
x = 180 - 157
x = 23
Answer:
n roots (counting multiplicity)
Step-by-step explanation:
The Fundamental Theorem of Algebra says that a polynomial of degree n will have exactly n roots (counting multiplicity). To get from "at most" to "exactly" you need a way to show that a polynomial of degree n has at least one root. Then you can proceed by induction.