26-02-2021
Mathematics

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Please help me, I just need a refresher on the method to finding the answer.

Thanks!

Please help me I just need a refresher on the method to finding the answer Thanks class=

Respuesta :

26-02-2021

Answer:

2.5%

Step-by-step explanation:

part over whole = part over whole

0.5/20 = p/100

then cross multiply

(0.5)(100) = 20p

50 = 20p

then divide both sides by 20

2.5 = p

To check, change 2.5% to a decimal by dividing by 100, (=0.025) then multiply by 20.

20 x 0.025 = 0.5

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