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Anvisha [2.4K]
3 years ago
13

Express each fraction or decimal as a percent. 0.0043 5.20 3/8 7/28

Mathematics
1 answer:
Agata [3.3K]3 years ago
6 0

Answer:

0.0043 : 0.43%

5.20 : 520%

3/8 : 37.5%

7/28 : 25%

Step-by-step explanation:

Convert each to a decimal and then multiply by 100 :)

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inessss [21]
Let
x-------> <span>the probability that a boy is chosen
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G------> number of girls in the debate team<span>

we know that
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</span>probability that a boy is chosen=number of boys in the debate team/total of people
so
x=B/20-------> equation 2

t<span>he probability that a girl is chosen is 2/3 the probability that a boy is chosen
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substitute equation 1 in equation 3
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resolve the equations system
x=B/20
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using a graph tool
see the attached figure
the solution is
x=0.6
B=12
G=20-12-----> G=8

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number of girls in the debate team is 8
the probability that a boy is chosen is 0.6 ----> 60%
the probability that a girl is chosen is 0.6*(2/3)----> 0.4---> 40%

the answer is
number of girls in the debate team is 8

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4 years ago
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