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enyata [817]
3 years ago
7

1 hour job costs $90 A 3 hour job costs $210 What is the initial amount and hourly rate

Mathematics
1 answer:
LekaFEV [45]3 years ago
3 0

Step-by-step explanation:

i+h=90

i+3h=210

so 2h=210-90=120

h=60

and i=90-60=30

so initial amount is $30 and hourly rate is $60

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