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EleoNora [17]
3 years ago
11

Aika spent a total of 80 minutes to complete her math and science homework. The ratio of the amount of time she spent to complet

e her science homework to the amount the time she spent to complete her math homework was 3 : 2. How many minutes did she spend on her math homework?
Mathematics
2 answers:
Leviafan [203]3 years ago
5 0
32 minutes

Trust me, i did a lesson about this
Comment if i got it right
Plsss mark me brainliest
Hoochie [10]3 years ago
5 0
3+2 = 5
80/5 = 16
16 x 2 = 32 - math
16 x 3 = 48 - science
48 + 32 = 80 so she spent 32 minutes on math
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Answer:

Step-by-step explanation:

Remark

The editor must have brackets put around the denominator when there are 2 terms.

That means I think the question is (√5) / (√8 - √3). If this is incorrect, leave a note.

To rationalize the denominator, you must multiply numerator and denominator by the conjugate  (√8 + √3).

Solution

√5 *  (√8 - √3) /  ( (√8 - √3) *  (√8 + √3)  )  

I don't think there is any point in removing the brackets in the numerator. Just leave it.

The denominator is a different matter.

denominator = ( (√8 - √3) *  (√8 + √3)  )

√8 * √8 = 8

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- √3 * √8 = - √24

-√3 * √3 = - 3

Take a close look at the 2 middle terms. They cancel out because one of them is plus and the other minus.

What you are left with is 8 - 3 = 5

So the final answer is

√5 *  (√8 - √3)

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5

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