Answer:
A) The repair bill would be at least $320 after 8 hours
B) The repairman would have worked for 5 hours
Step-by-step explanation:
A) Set up your equation with x equaling hours
30x + 80 = 320
subtract 80 to the opposite side of the equation
30x = 240
divide by 30
30x/30 = 240/30
x = 8
B) Set up your equation with x equaling hours
30x + 80 = 230
subtract 80 to the opposite side of the equation
30x = 150
divide by 30
30x/30 = 150/30
x = 5
Answer:
2x-10+x+x+10=180, or 4x=180
Step-by-step explanation:
So since the total is 180, you add them all up like an equation.
So,
2x-10+x+x+10
Combine like terms
4x=180
x=45
Then plug it back in to the equations.
x=45
(2x-10)=80
(x+10)=55
There are 12 inches in a foot and 3 feet in a yard
so you multiply 110 by 3 to get the number of feet, which is 330
and then you multiply 330 by 12 to get the total number of inches.
The answer is 3960 inches.
Answer:
2.80
Step-by-step explanation:
Answer:
Step-by-step explanation:
21 inches
