Step-by-step explanation:
A) The bus rental would be the total cost or "C". So 700=250+3m.
B) Solve with properties of equality:
700 - 250 = 250 + 3m - 250
450 = 3m
450/3 = 3m/3
150 = m
150 miles
C) Check your answer by plugging the answer into the original equation:
C = 250 + 3(150)
C = 250 + 450
C = 700
Answer:
The answer would be d(c(x)) = .60x - 5
Step-by-step explanation:
In order to write an equation for d(c(x)), start with the d(y) equation.
d(y) = .80y - 5
Now input the c(x) equation in for y and then solve.
d(c(x)) = .80(.75x) - 5
d(c(x)) = .60x - 5
<span>3x – y = 18
We start by plugging in 27 for y. The goal is to isolate x by itself to solve for x.
3x - 27 = 18
Then we add 27 to both sides of the equation
3x = 45
Lastly, we divide both sides by 3 to finally isolate x by itself and solve.
x = 15</span>
