A power company calculates a person's monthly bill from the number of kilowatt -hours ( Nh) , x, used . The function b(x)= 0.15x

Question

2 years ago

9

,&x<=360\\ 0.10(x-360)+54,&x>360 determines the bill. How much is the bill for a person who uses 560 kWh in a month ? A. $84 B. $54 . $64 D. $74

1 answer:

Rashid [163] · Answer 1 · 2023-04-29T06:26:22+03:00

The bill for a person who uses 560 kWh in a month is (d) $74

<h3>How to determine the bill?</h3>

The function is given as:

For a person who uses 560 kWh, it means that:

x > 360

So, we use the following function to determine the bill

b(x) = 0.10(x - 360) + 54

Substitute 560 for x

b(560) = 0.10(560 - 360) + 54

Evaluate

b(560) = 74

Hence, the bill for a person who uses 560 kWh in a month is (d) $74

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