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3 years ago

Which situation has a unit rate of 15 laps per hour?

Mathematics

1 answer:

trapecia [35]3 years ago

8 0

Answer:

Option C. Luigi runs 150 laps in 10 hours .

Step-by-step explanation:

Unit Rate

We need to match for an option having a unit rate of 15 laps per hour.

To find the required rate, we divide the number of laps by the number of hours.

A. Luigi runs 44 laps in 4 hour . This gives a unit ratio of 44/4 = 11 laps/hour. This is not the correct option

B. Luigi runs 2 laps in 30 hours. This gives a unit ratio of 2/30 =0.07 laps/hour. This is not the correct option

C. Luigi runs 150 laps in 10 hours . This gives a unit ratio of 150/10 = 15 laps/hour. This is the correct option

D. Luigi runs 60 laps in 5 hours. This gives a unit ratio of 60/5 = 12 laps/hour. This is not the correct option

Option C. Luigi runs 150 laps in 10 hours .

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The length of a rectangle is twice it’s with the perimeter of a rectangle is 126 feet.

madreJ [45]

Answer:

Length = 42 feet

Width = 21 feet

Step-by-step explanation:

Let the length and width be represented by L and W

L = 2W

Perimeter (P) = 126 feet

2(L + W) = 126

L + W = 126/2 = 63

2W + W = 63

3W = 63

W = 63/3 = 21 feet

L = 2W = 2 × 21 feet = 42 feet

3 0

2 years ago

(3.8 x 10 ^ -6) x (2.37 x 10 ^ -3) Enter the answer in science notification

Black_prince [1.1K]

Multiply the coefficients and the powers of 10 with each other:

$(3.8 \times 10^{-6}) \times (2.37 \times 10^{-3}) = (3.8\times2.37) \times (10^{-6} \times10^{-3})$

The numeric part simply yields

$3.8\times2.37 = 9.006$

As for the powers of 10, you have to add the exponents, using the rule

$a^b \times a^c = a^{b+c}$

So, we have

$10^{-6} \times10^{-3} = 10^{-6-3} = 10^{-9}$

So, the final answer is

$9.006\times 10^{-9}$

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2 years ago

Keith bought a bag of parsnips that weighed 5 pounds. he also bought a bad of turnips that weighed 2 1/2 times as much as the pa

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Answer:

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2 years ago

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Anna007 [38]

Answer:

5 π/4

Step-by-step explanation:

Please see attachment

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3 years ago

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The answer seems to be D!!

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