Answer:
b = 40
Step-by-step explanation:
A heater repairman charges $40 to visit a home, plus $70 per hour for the time he spends on the repair.
This situation can be described by an equation of the form y=mx+b , where
x = the time in hours
y = the cost in dollars.
What is the value of b in this equation?
A heater repairman charges $40 to visit a home, plus $70 per hour for the time he spends on the repair
Writing the above in an equation =
y = $70 × x + $40
y = 70x + 40
Therefore, the value of b in the expression = 40
Answer:
=21 + 3x
Step-by-step explanation:
use distributive property
=3(7 + x)
=21 + 3x
I would say its , its the best described one
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Answer:
80 degrees
Step-by-step explanation:
they are vertical pirs (across from each other) so they have the same measure
Do you have picture or word problem