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3 years ago

Plz help with this question

Mathematics

2 answers:

AnnyKZ [126]3 years ago

5 0

225 serves because you need to set up a proportion. The proportion is 2/5=90/x then solve for x by cross multiplying, which gives you 450=2x. Then divide 450 by 2 which gives you 225. Work shown in the attached picture.

Aleksandr-060686 [28]3 years ago

3 0

Answer:

225 serves

Step-by-step explanation:

Because the number of correct hit serves would be 2/5 total serve

So in this case, he hit 2 part in total of 5 parts in the total serves so:

2 part of 5 would = 90 serves

So 1 part = 90 / 2 = 45 serves

Total serves he made = 45 * 5 = 225 serves

Hope this helped :3

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ANTONII [103]

Answer:

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Step-by-step explanation:

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3 years ago

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Marta_Voda [28]

Answer:

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Step-by-step explanation:

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3 years ago

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4 years ago

Read 2 more answers

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Amanda [17]

Answer:

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3 years ago

A total of $6000 was invested, part of it at 3% interest and the remainder at 8%. If the total yearly interest amounted to $380,

Nastasia [14]

$ 2000 is invested at 3 % interest and $ 4000 is invested at 8 % interest

Solution:

Given that, total of $6000 was invested

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Then, (6000 - x) is the amount invested at 8 % interest

Given that,

The total yearly interest amounted to $380

Then, we can frame a equation as:

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4 years ago