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Nata [24]
2 years ago
5

Mackenzie needed to get her computer fixed. She took it to the repair store. The technician at the store worked on the computer

for 3.75 hours and charged her $157 for parts. The total was $400.75. Write and solve an equation which can be used to determine x, the cost of the labor per hour.
Mathematics
1 answer:
Ann [662]2 years ago
6 0

Answer:

x=65

Step-by-step explanation:

Based on the given conditions, formulate: 157+3.75 X x=400.75

Rearrange unknown terms and Calculate the sum:

3.75x = 400.75 - 157

3.75x = 243.75

x=243.75 / 3.75

x=65

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Step-by-step explanation:

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Answer:

31/15 or 2 1/15

Step-by-step explanation:

The common denominator is 15. Convert both to an improper fraction and simplify.

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Allisa [31]

Answer: you got this

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7 0
2 years ago
Thomas invests $50,000 in an account that compounds interest continuously and earns 15%. How long will it take for his money to
WARRIOR [948]

Answer:

It will take about 7.3 years for his money to triple.

Step-by-step explanation:

Identify the variables in the formula.

A = 150,000

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A = Pe^rt

Substitute the values into the formula.

150,000 = 50,000e^0.15*t

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Divide each side by 0.15.

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Approximate the answer.

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