3 years ago

How can I compare these scores?

Mathematics

2 answers:

ra1l [238]3 years ago

8 0

You can convert each as a percentage or convert them all out of 5.

NISA [10]3 years ago

6 0

4/20 simplified is 1/5.

1/5 in percent is 20%

So you have 20%, 25%, and 20%

In decimal, you have:

.20, .25, .20

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How many tenths are there in four fifths?

sleet_krkn [62]

So to find how many tenths, or 1/10's, there are in four fifths, or 4/5, divide 4/5 by 1/10.

$\frac{4}{5} \div \frac{1}{10}$

Now, remember that dividing by a number is equivalent to multiplying by its reciprocal. To find the reciprocal, just flip the numerator and denominator around. In this case, 1/10 would become 10/1. Flip 1/10 to its reciprocal, change the sign to multiplication, and multiply numerators with numerators and denominators with denominators:

$\frac{4}{5}\times \frac{10}{1}=\frac{40}{5}=8$

In short, there are 8 tenths in four fifths.

5 0

3 years ago

Read 2 more answers

An Iyonix PC is sold for £1200 at a reduction of 20% on its recommended retail price. What was the computer's original price?

Mama L [17]

$100\%-20\%=80\%\\\\\begin{array}{ccc}80\%&-&\£1200\\\\100\%&-&\£x\end{array}\\\\\\cross\ multiply\\\\80x=1200\times100\\\\80x=120,000\ \ \ \ |divide\ both\ sides\ by\ 80\\\\x=1500\ (\£)\\\\Answer:The\ computer's\ original\ price\ was\ \£1500.$