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1 answer:
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y = 3
The opposite sides of a rectangle are equal thus
2y + 4 = 10
subtract 4 from both sides
2y = 10 - 4 = 6
divide both sides by 2
y = = 3
Answer:
total cost = $ 81
Step-by-step explanation:
It is given that the fixed cost is $ 39
and the cost per minute is $0.07
Let us assume the number of minutes used be x
we have
total cost = cost per minute × number of minutes used + fixed cost
we plug the given values, so we have
we need to find the total cost for 10 hours used
x= 10 hours = 10(60) minutes = 600 minutes
so we have total cost for x= 600 minutes
hence the total cost = $ 81