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3 years ago

Why are percents rational numbers

2 answers:

7 0

A rational number can be put into a fraction form.
A percent, such as 50% can be put into fraction form.

50% = 0.5 = 1/2

Helen [10]3 years ago

6 0

By definition, we have:

Rational number is any number that can be represented as the quotient of two whole numbers or, more precisely, an integer and a positive natural.

For the case of percentages, we must always divide by 100 to convert it into a number.

For example, 50% written as a number is:

50% = 50/100

Answer:

Percentages are rational numbers because they must always be divided by 100 to become a number.

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Like terms and unlike terms

vaieri [72.5K]

Answer:

In algebra, like terms are terms that have the same variables and powers. The coefficients do not need to match.

Unlike terms are two or more terms that are not like terms, i.e. they do not have the same variables or powers. The order of the variables does not matter unless there is a power. For example, 8xyz2 and −5xyz2 are like terms because they have the same variables and power while 3abc and 3ghi are unlike terms because they have different variables. Since the coefficient doesn't affect likeness, all

5 0

3 years ago

Read 2 more answers

A salesperson sells $2100 in merchandise and earns a commission of $273, What is the commission rate?

larisa86 [58]

if we take 2100 to be the 100%, what is 273 off of it in percentage?

$\begin{array}{ccll} amount&\%\\ \cline{1-2} 2100 & 100\\ 273& x \end{array} \implies \cfrac{2100}{273}=\cfrac{100}{x}\implies \cfrac{100}{13}=\cfrac{100}{x} \\\\\\ 100x=1300\implies x=\cfrac{1300}{100}\implies x=13$

3 0

2 years ago

The price of a cycle is reduced by 25 per cent. The new price is reduced by a further 20 per cent. The two reductions together a

alexandr402 [8]

$100\%-25\%=75\%=\frac{75}{100}=0.75\\\\100\%+20\%=120\%=\frac{120}{100}=1.2\\\\1.2\cdot0.75=0.9=0.9\cdot100\%=90\%\\\\100\%-90\%=10\%\\\\Answer:Single\ reduction\ is\ 10\%.$

6 0

3 years ago

Find the real solution(s) by solving for x (round any decimals to the nearest 100th);<br> 5x = 320

baherus [9]

Answer:

x=64

Step-by-step explanation:

5x = 320

Divide each side by 5

5x/5 = 320/5

x=64

6 0

3 years ago

Read 2 more answers

If y varies directly with x. and y=10 when x=5.6, find the value of y when<br> X=3

Nady [450]

Answer: 5.3571

Step-by-step explanation:

The formula used to calculate direct proportion is: y = kx

We will find the constant of proportionality when y=10 and x=5.6. This will be:

y = kx

10 = 5.6k

k = 10/5.6

k = 1.7857143

The value of y when X=3 will be:

y = kx

y = 1.7857143 × 3

y = 5.3571

3 0

2 years ago