Rob measures his go-cart’s speed to be 250 inches per second. What is the go-cart’s speed in miles per hour (to the nearest tenth) ? A

Question

Rob measures his go-cart’s speed to be 250 inches per second. What is the go-cart’s speed in miles per hour (to the nearest tenth) ?
A) 7.1 mph
B) 14.2 mph
C) 28.4 mph
D) 35.2 mph

0

Answers ( No )

    0
    2021-11-25T23:43:43+00:00

    Answer:

    b.14.2 mph

    Step-by-step explanation:

    0
    2021-11-25T23:44:10+00:00

    Answer:

    The cart’s speed in miles per hour is 14.2 miles per hour .

    Option (B) is correct .

    Step-by-step explanation:

    As given

    Rob measures his go-cart’s speed to be 250 inches per second.

    As

    1\ inch = \frac{1}{63360}\ miles

    1\ second = \frac{1}{3600}\ hours

    Now convert 250 inches per second into miles per hour .

    250 inches\ per\ second = \frac{250\times \frac{1}{63360}}{\frac{1}{3600}}\ miles\ per\ hour

    250 inches\ per\ second = \frac{\frac{250}{63360}}{\frac{1}{3600}}\ miles\ per\ hour

    250 inches\ per\ second = \frac{250\times 3600}{63360}\ miles\ per\ hour

    250 inches\ per\ second = \frac{900000}{63360}\ miles\ per\ hour

    250 inches per second = 14.2(Approx) miles per hour.

    Therefore the cart’s speed in miles per hour is 14.2 miles per hour .

    Option (B) is correct .

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