Y=3x
y=3(-3)
y=-9
Hope this helped.... Sorry if it ends up being wrong!
The first mechanic worked for 10 hours and the second mechanic worked for 15 hours.
Step-by-step explanation:
Given,
Charges of first mechanic = $95 per hour
Charges of second mechanic = $115 per hour
Total hours = 25
Total amount charged = $2675
Let,
The number of hours worked by first mechanic = x
The number of hours worked by second mechanic = y
According to given statement;
x+y=25 Eqn 1
95x+115y=2675 Eqn 2
Multiplying Eqn 1 by 95

Subtracting Eqn 3 from Eqn 2

Dividing both sides by 20

Putting y=15 in Eqn 1

The first mechanic worked for 10 hours and the second mechanic worked for 15 hours.
Keywords: linear equation, elimination method
Learn more about elimination method at:
#LearnwithBrainly
Answer:
Step-by-step explanation:
f(x)=x is a line.
Answer:
113.04ft^2
Step-by-step explanation:
Like before 
Multiply the numbers together
2 x 3 = 6
5 x 7 = 35
6 x 35 = 210
210 is the original number
hope this helps