Question

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Madonna loves records. She has 338 of them. Her grand father gives her some for her birthday. She ends up with 456 after her birthday. At what percent did her grandfather give her. (I know it's a funky question. You have to divide the amount and then round it to the nearest hundred)

Answer 1

34.9%

Explanation:

Ok, we need to express this number as a percent of increase. So, what we'll do is write this as a proportion.

456/338 = x/100

456 x 100 = 338x

45600 = 338x

x = 134.911242604

A 34.9% increase

Answer 2

• 17.53%

Explanation:

• Initial number = 388
• Final number = 456

Increase in number:

• 456 - 388 = 68

Increase in percent:

• 68/388*100% = 17.53% rounded to the nearest hundreds