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larisa86 [58]
2 years ago
9

PLS HELP, Yesterday 5/8 of the 64 students in a contest give their speeches. How many students do their speeches, Simplest form

Mathematics
2 answers:
Alexxandr [17]2 years ago
3 0

Answer:

40 students have given their speeches

24 students need to give their speeches

5/8 of the students have given their speeches

3/8 of the students need to give their speeches

Step-by-step explanation:

Damm [24]2 years ago
3 0

Answer:

40 students gave their speeches.

Step-by-step explanation:

Anytime in math that it says the word "of" it means multiplication. So, in this situation, we are multiplying:

(5/8) x 64.

But, when you are multiplying a fraction by a number, you are actually dividing instead of multiplying. Think of it this way: the question is asking you 5/8 <em>of</em> 64, meaning you must find how many is 5/8 <em>of</em> the amount of students that gave their speeches is. Also, that slash between the 5 and the 8 in the fraction is actually a division symbol. So, by placing 5/8 into 64, we get:

(5/8) x 64 = 40.

I'm quite sure why it asked for "simplest form" when the answer is not a decimal or fraction, but this is the answer to the problem that you have posted.

I hope that this helps.

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Answer:

<em>Greatest number of boxes to pack all items into them equally will be 12 where each box contain 10,12,9 files, notebooks and pencils respectively.</em>

Step-by-step explanation:

To find the greatest number of boxes that Riley could pack the items into, we have to find the HCF of 144, 120 and 108.

We will find the HCF through prime factorization.

<em>("Prime Factorization" is finding which prime numbers multiply together to make the original number)</em>

<u>Step 1:</u>

Find the prime factorization of each of the given numbers.

<u>Step 2:</u>

The product of all common prime factors is the HCF of the given numbers.

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And last number is 108:

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Now we will match the numbers which are common in all three values. In other words we will find the common factors.

<em>The common factors in 120,108 and 144 are:</em>

<em>2*2*3</em>

If we multiply 2*2*3 we get 12

Hence, HCF of ( 120,108,144 ) = 12

<em>Therefore, Greatest number of boxes to pack all items into them equally will be 12 where each box contain 10,12,9 files, notebooks and pencils respectively.</em>

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