Respuesta :

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.
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hoangpm04

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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