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Vesna [10]
2 years ago
7

It takes an Engineer three hours to drive to his brother’s house at an average speed of 50 miles per hour. If He takes the same

route home, but his average speed is 60 miles per hour, what is the time, in hours, that it takes him to drive home?
Mathematics
1 answer:
Liono4ka [1.6K]2 years ago
8 0

Answer:

His average speed was 50 miles per hour. = 150 miles. If his average speed is 60 miles per hour. It will take 2.5 hours to drive home.

Step-by-step explanation:

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Answer: 20 oranges and 5 mangoes

Step-by-step explanation:

Define the following:

x = number of oranges

y = number of mangoes

Make the following system of equations:

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Solve for x:

y = 25 - x

⇒ 0.35x + 1.00(25 - x) = 12.00

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⇒ -0.65x = -13.00

⇒ x = 20

Solve for y:

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y = 5

∴ 20 oranges and 5 mangoes were purchased.

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1 year ago
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Step-by-step explanation:

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