five percent of a batch of fuel was found faullty if 27 fuses were faulty how many were inspected the price of internet service

Question

2 years ago

11

is decreased by 7% to 52.00 what is the original price

1 answer:

LenKa [72] · Answer 1 · 2023-02-07T13:26:53+03:00

There are 540 fuses in total and the original price of the internet is $55.91

<h3>How to work with percentages?</h3>

a) We know that 5% of the fuses are faulty, and there are 27 faulty fusses, then we can write:

5% = 27

100% = x

We want to find x, to do that, we can write:

x = 27*(100%/5%) = 27*20 = 540

There are 540 fuses in total.

b) Now we know that the original price is P, and when we decrease it by 7%, then new price is $52.00

Then we can write:

$52.00 = P*(1 - 7%/100%)

$52.00 = P*(0.93)

$52.00/0.93 = P = $55.91

The original price is $55.91

If you want to learn more about percentages:

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