Dimensional Analysis

Question 1

The maximum height of a vehicle that can safely pass under a bridge is 12 feet 5 inches. A truck measures 162 inches in height. Which best explains whether or not the truck can pass safely under the bridge?

Revolt · Accepted Answer

The truck cannot pass safely under the bridge. The truck is 13 inches taller than the maximum height.

Question 2

Which expression can be used to convert 100 USD to Japanese yen?

Revolt · Accepted Answer

Answer image: https://media.edgenuity.com/EVresources/18dc9ee07ac1ea8db73bea18df75c035.png

Question 3

Two competing gyms each offer childcare while parents work out. Gym A charges $9.00 per hour of childcare. Gym B charges $0.75 per 5 minutes of childcare. Which comparison of the childcare costs is accurate?

Revolt · Accepted Answer

Gym B and Gym A charge the same hourly rate for childcare.

Question 4

A store manager timed Janette to see how long it would take her to fold and put away a sweater, a shirt, a pair of pants, and a scarf. It took her 26.1 seconds for the shirt, 24.3 seconds for the sweater, 32.8 seconds for the pants, and 18.2 seconds for the scarf. What was the average time it took Janette to fold and put away all four items?

Revolt · Accepted Answer

25.4 seconds

Question 5

Question 5

Revolt · Accepted Answer

62580

Question 6

A white-tailed deer can sprint at speeds up to 30 miles per hour. American bison can run at speeds up to 3,520 feet per minute. Which animal is faster and by how many miles per hour? There are 5,280 feet in one mile.

Revolt · Accepted Answer

A bison is 10 miles per hour faster than a deer.

Question 7

Mitchell travels from the US to Canada, where he exchanges 150 US dollars for Canadian dollars. He then spends 20 Canadian dollars, returns to the US, and exchanges the remaining money back to US dollars. How many US dollars does Mitchell have remaining?

Revolt · Accepted Answer

130.59

Question 8

The Ruiz family is exchanging euros for US dollars. The exchange rate is 1 euro equals 1.35261 USD. Since the Ruiz family knows that USD are stated to the nearest hundredth of a dollar, they used the conversion ratio. Will this give the Ruiz family the correct exchange? Explain.

Revolt · Accepted Answer

No, by rounding the conversion ratio, the Ruiz family will not be getting the most accurate answer. Using the more accurate conversion ratio will give an answer with more than 2 decimal places so the answer can accurately be rounded after the conversion.

Question 9

What did you include in your response? Check all that apply.

Revolt · Accepted Answer

The rounded conversion will not give an accurate answer based on the limitations of the problem.; Using the more accurate conversion factor will give an answer that can then be rounded to 2 decimal places.

Question 10

What errors did the coach make? Check all that apply.

Revolt · Accepted Answer

He used an incorrect time ratio converting hours to minutes.; He incorrectly concluded that she is not running fast enough.

Dimensional Analysis Answers

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