Algebra Tutorials!

 Friday 12th of July

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 Depdendent Variable

 Number of equations to solve: 23456789
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 Dependent Variable

 Number of inequalities to solve: 23456789
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# Percents, Decimals, and Fractions

1. Meaning of Percent: "Percent" means per hundred. The symbol for percent is "%".

2. Changing a percent to a fraction: To change a percent to a fraction, write the number before the % sign as the numerator of the fraction, the number 100 as the denominator of the fraction, and then reduce.

Ex. Change the given percents to fractions.

a.

b. 37.5%

c. 6.8%

3. Meaning of 100%: Since 100% equals which is equal to 1, we know that 100% is equal to 1.

4. Changing a decimal to a percent: To change a decimal to a percent, multiply by 100%.

Ex. Change each decimal to a percent:

a. 0.48 = 0.48(100%) = 48%

b. 2.5

5. Changing a percent to a decimal: To change a percent to a decimal, divide by 100%.

Ex. Change each percent to a decimal:

a.

b. 25%

6. Changing a fraction to a percent: To change a fraction to a percent, first change the fraction to a decimal, then change the decimal to a percent.

Ex. Change each fraction to a percent:

a.

b. (Round to the nearest tenth of a percent)