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lisabon 2012 [21]
3 years ago
13

How to turn a percent into a decimal

Mathematics
2 answers:
vitfil [10]3 years ago
4 0

To turn a percent into a decimal, move the decimal point over to the left two places.

For example, 25% would be .25 as a decimal.

An easy way to remember how many places the decimal point moves is by looking at the percent sign. It has two circles on either side of the slash, so two circles = two places.

Elena-2011 [213]3 years ago
3 0

Step 1: Find the percentage in the problem.

Step 2: Create a fraction by putting the fraction as the numerator over 100.

Step 3: Divide the numerator "the percent" by the denominator which is 100.

Example:

32% = ?

\frac{32}{100}

32 ÷ 100 = .32

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The ratio of children to adults at the football game was 23. If there were 140 children at the football game,
inessss [21]

Answer:

Therefore, the number of adults at the football game was 6.

Step-by-step explanation:

Let A represents the number of adults and C represents the number of children.

Therefore, the ratio of children to adults is given as follows:

23:1 = C:A ....................... (1)

Since C = 140, this is substituted into equation (1) as follows:

23:1 = = 140:A ....................... (2)

Transforming equation (2) and solve for A, we have:

23 / (23 + 1) = 140 / (140 + A)

23 / 24 = 140 / (140 + A)

0.958333333333333 = 140 / (140 + A)

0.958333333333333 (140 + A) = 140

(0.958333333333333 * 140) + 0.958333333333333A = 140

134.166666666667 + 0.958333333333333A = 140

0.958333333333333A = 140 -134.166666666667

0.958333333333333A = 5.833333333333

A = 5.833333333333 / 0.958333333333333

A = 6.08695652173878

Rounding to a whole number, we have:

A = 6

Therefore, the number of adults at the football game was 6.

5 0
3 years ago
Determine the perimeter of the figure.*<br> 8 cm<br> 10 cm
Marizza181 [45]

Answer:

80

Step-by-step explanation:

4 0
4 years ago
You purchased $132.49 worth of wheels and bearings for your skateboards. The shop charges $15 per board to install them. The tot
Mila [183]

4 skateborards will be repaired

4 0
3 years ago
alex sells cars at keith palmer ford. he earns $400 a week plus $150 percar he sells. if he earned $150 last week , how many car
Igoryamba

Alex would have sold one car

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3 years ago
Read 2 more answers
Show your work:<br> (please dont answer with a link)
baherus [9]

Answer:

3) 8

4) 5.25 cups

Step-by-step explanation:

3) cross multiply:

36 × 10 = 360

45 × x = 45x

equate them both:

360 = 45x

divide both sides by 45

360 ÷ 45 = 8

x = 8

4) 8 people : 3 cups of flour

14 people : how many cups?

14 ÷ 8 = 1.75

to get from 8 people to 14 people we multiply by 1.75, so do the same thing to the 3 cups:

3 × 1.75 = 5.25 cups

5 0
3 years ago
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