Math Practice 101
Homework Explained - Math Practice 101

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Grade 4 HMH Go Math - Answer Keys


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  • Question 12 (request help)

    Ava started reading at 3:30 p.m. She stopped for a snack at 4:15 p.m. During this time, through what fraction of a circle did the minute hand turn? How many degrees did the minute hand turn?

    a. What are you asked to find?
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  • Question 12 (request help)

    b. What information can you use to find the fraction of a circle through which the minute hand turned?
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  • Question 12 (request help)

    c. How can you use the fraction of a circle through which the minute hand turned to find how many degrees it turned?
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  • Question 12 (request help)

    d. Show the steps to solve the problem.

    Step 1:

    \(\begin{align}
    \frac{3\times\blacksquare}{4\times\blacksquare}&= \frac{?}{360}\\
    \end{align}\)

    Step 2:

    \(\begin{align}
    \frac{3\times90}{4\times90}&= \frac{\blacksquare}{360}\\
    \end{align}\)
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  • Question 12 (request help)

    e. Complete the sentences. From 3:30 p.m. to 4:15 p.m., the minute hand made a ______ turn clockwise. The minute hand turned ______ degrees.
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  • Question 13 (request help)

    An angle represents \(\frac{1}{15}\) of a circle. Select the number to show how to find the measure of the angle in degrees.

        

    \(\begin{align}
    \frac{1}{15}=\frac{1\times\huge \Box}{15\times\huge \Box}&= \frac{\huge \Box}{360}\\
    \end{align}\)
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