Answer:
One inch represented 3 feet in the first scale, but now 1 inch now represents 4 feet in the second scale.
Step-by-step explanation:
Answer:
The answer is when they work 4 hours x=4
Step-by-step explanation:
510 + 80x = 650 + 45x
80x - 45x = 650 - 510
35x = 140
x = 140/35
x = 4 hours
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