Its C because u have to divide 425 by 50 to get the mpg. Then because the truck now has an 80 gallon tank u have to multiply 8.5 with 80
X - Ernie, y - Kaylin, z - Tria
x = y + 121.50
z = 3y - 35
x + y + z = 579
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z = 3 y - 35 => - 3 y + z = -35
y + 121.50 + y + z = 579
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- 3 y + z = - 35 / · ( -1 )
2 y + z = 457.50 (we will use the elimination method)
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3 y - z = 35
2 y + z = 457.50
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5 y = 492.5, y = 492.5 : 5 = 98.5
z = 3 · 98.5 - 35
z = 260.5
Tria earned $260.5
Answer:
a. 440
Step-by-step explanation:
The information provided allows us to set up the following system of linear equations:
We already have the value for A, solving the system gives us the values for B and C:
The total number of forms used is:
He used 440 forms.
m • (g4c - 3)
(1):g4 was replaced by g^4.
Pulling out like terms:
2.1:Pull out like factors:
g4cm - 3m = m • (g4c - 3)
Trying to factor as a Difference of Squares :
2.2:Factoring: g4c - 3
