3 years ago

Pls anwser the questions

Mathematics

1 answer:

aksik [14]3 years ago

3 0

1 - 51
2 - 129
3 - 51
5 - 90

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Answer:

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Step-by-step explanation:

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Morgarella [4.7K]

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144 seconds

Step-by-step explanation:

To do solve this question, we must find the LCM (least common multiple) of 12, 16, and 18.

Let's start by prime factorizing (finding the prime factors) all the numbers.

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$18\rightarrow2*9\rightarrow2*3*3$

Now, we must find the greatest quantity of each [prime] number and multiply them together to obtain the least common multiple.

Upon further evaluation of the [prime] factors, we can see that we need four 2s and two 3s. Therefore...

$2*2*2*2*3*3=2^4*3^2=16*9=144$

They will be fired together again after 144 seconds.

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If martha earns $3.25 per hour for babysitting, how much will she earn in:

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$3.25 multiplied by the hour

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