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Hitman42 [59]
3 years ago
11

David walked for 20 minutes with the speed of 3 mph. How far did he walk?HELP!!!

Mathematics
1 answer:
Ludmilka [50]3 years ago
7 0

Answer:

1 mile

Step-by-step explanation:

1 hour = 3 miles

20 minutes is 1/3 of an hour, so he walks 1 mile

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Step-by-step explanation:

So your solution would be:

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=(\frac{3}{5})^{2} + 4 \times 3 - 2

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Just try to remember PEMDAS.

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This is the order we follow when going about expressions with many operations.

Let's start with the parenthesis part. Notice that there is an exponent beside the parenthesis enclosing the fraction. Here we use the quotient to a power rule. We distribute the exponent to the numerator and the denominator.

=(\frac{3}{5})^{2} + 4 \times 3 - 2\\

=\dfrac{3^{2}}{5^{2}} + 4 \times 3 - 2

=\dfrac{9}{25} + 4 \times 3 - 2

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We have a fraction so we do that first. Then we do the multiplication after.

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