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Alex787 [66]
3 years ago
12

78% of the class completed their homework last night. What fraction of the class completed their homework?

Mathematics
2 answers:
Artyom0805 [142]3 years ago
7 0

Answer:

\frac{39}{50}

Step-by-step explanation:

78% is .78 as a decimal and it is \frac{78}{100}.

\frac{78}{100} can be simplified to \frac{39}{50}

mixas84 [53]3 years ago
3 0

Answer:

\frac{39}{50}

Step-by-step explanation:

=> 78% makes:

=> \frac{78}{100}

<u><em>In simplest form:</em></u>

=>\frac{39}{50}

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Step-by-step explanation:

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3 years ago
Does anyone understand this.
saw5 [17]
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A box contains 2 plain pencils and 2 pens. A second box contains 3 color pencils and 5 crayons. One item from each box is chosen
Lapatulllka [165]

Answer:

50% pen first box and 62.5% crayon from second box

Step-by-step explanation:

The first box contains 4 items, 2 of each. This means there are \frac{2}{4} pens. This gives you a \frac{2}{4} chance of picking out a pen. This can be written as 50%.

The second box contains 8 items, 3 color pencils and 5 crayons. This means \frac{5}{8} of the contents are crayons, meaning you have a \frac{5}{8} or 62.5% chance of picking a crayon.

*For working out the percentages, you should convert the fraction to a decimal and then multiply that by 100.

**This content involves fractions, decimals and percentages, as well as basic probability, which you may want to revise. I'm always happy to help!

8 0
3 years ago
2*5=10
BlackZzzverrR [31]

Answer:

exactly

Step-by-step explanation:

4 0
4 years ago
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The bird population on an island is declining at a rate of 2.2% per year. If the population was 3500 in the year 2009, which is
Vinil7 [7]
Given:
2009 : 3,500 population
decrease of 2.2% per year. 
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2014 - 2009 = 5 years

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The bird population in 2014 will be 3,131.57 or 3,132.
7 0
3 years ago
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