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arsen [322]
2 years ago
11

Help plz I don’t understand how to do this math below

Mathematics
2 answers:
ASHA 777 [7]2 years ago
4 0

1. \frac{1}{3}  \times  \frac{2}{5}  \\  \frac{1 \times 2}{3 \times 5}  =  \frac{2}{15}

2. \frac{2}{5}  \div  \frac{3}{5}  \\  \frac{2}{5}  \times  \frac{5}{3}  \\   = \frac{2}{3}

<em>-</em><em> </em><em>BRAINLIEST</em><em> answerer</em>

NeTakaya2 years ago
4 0

1. When multiplying fractions, multiply the numerators and multiply the denominators:

1/3 x 2/5 = (1 X 2) / (3 X 5) = 2/15

2. When dividing fractions multiply by the inverse of the second fraction.

2/5 / 3/5 = 2/5 x 5/3 = 10/15 = 2/3

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20% of the participants are girls and got a medal, and 33% of the girls got a medal.

<h3>What percent of the participants were girls who received medal?​</h3>

First, we know that 40% of the participants were boys, so the other 60% were girls.

We know that 50% of the boys got a medal, so the percentage (in decimal form) of participants that are boys and got a medal is:

P = (0.4)*(0.5) = 0.2

So, 20% of the participants are boys and got a medal.

We know that the number of girls that got a medal is the same as the number of boys, then we also have that 20% of the participants are women who got a medal.

Then if the percentage of girls that got a medal is x (in decimal form), we must have that:

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x = 0.33

This means that 33% of the girls got a medal.

If you want to learn more about percentages:

brainly.com/question/843074

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