You have two unknown rates, so we need to develop two equations to solve for these unknowns (based on the information given on the problem statement):
5x + 10y = 725
x + y = 100
By substitution, we get:
5x + 10(100 - x) = 725
5x + 1000 - 10x = 725
-5x = 725 - 1000
-5x = -275
x = -275/-5 = 55
100 - 55 = 45
Thus:
The mechanic who worked for 5 hours charged his time at $55/hr, and the mechanic who worked for 10 hours charged his time at $45/hr.
To verify, plug and chug the results back into the original equations:
5(55) + 10(45) = 725
275 + 450 = 725
725 = 725 [OK]
55 + 45 = 100 [OK]
Step-by-step explanation:
please mark me as brainlest
Answer:
At first, in 1635, the evening meetings had been just for women . . .
What relationship between ideas is shown in the text above?
Question 1 options:
Location of events
Similarity of events
Timing of events
Examples of an idea
Step-by-step explanation:
18bags
Look if 1=3 2=9 3= 18 so he uses 18 bags!
