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2 years ago

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One month, a homeowner used 150 units of gas and 520 units of electric for a total cost of $84.20. The next month, 210 units of

gas and 405 units of electric were used for a total cost of $82.35. Find the cost per unit of gas and electric.

1 answer:

Tom [10]2 years ago

4 0

Answer:

gas = $0.23, electricity = $0.10

Step-by-step explanation:

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nikdorinn [45]

Answer:

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Step-by-step explanation:

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3 years ago

One cell phone plan charges $20 per month plus $.15 per minute used. A second cell phone plan charges $35 per month plus $.10 pe

SOVA2 [1]

20+0.15x = 35+0.10x

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check:

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3 years ago

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GaryK [48]

$x = \frac{ac + b}{2c - ab}$

Refer to the attachment for step by step explaination.

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2 years ago

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Answer:

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