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xeze [42]
3 years ago
8

In a group of 60 children there are three times as many boys as girls.how many girls are there

Mathematics
1 answer:
Dominik [7]3 years ago
3 0
3 times as many boys as girls, so write it in the ratio 3:1 (Three boys for every one girl)
Add up all the numbers in the ratio (3 + 1 = 4)
Divide the total number of children (60) by the number you just worked out (4)
Multiply the resulting number (60/4 = 15) by the ratio of girls (1)
15 * 1 = 15, there were 15 girls in the class (And so 45 boys)
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Explanation:
When we solve for probability, we want to find out how many of something there is out of its total. So in this case, we want to see how many white balls there are out of the totals balls in the box. We already know that there are 10 white balls, so we need to figure out the total balls in the box, by adding up. 8 green balls + 16 red balls + 10 white balls + 6 pink balls = 40 balls in total. Now we know that the fraction would be 10/40, as there are 10 white balls out of 40 total balls. Finally, we simplify the fraction to 1/4, therefore the answer is B.
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3 years ago
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3 years ago
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saveliy_v [14]
<span><span>Chin canned a number of quart jars and a number of pint jars of tomato. She canned total of 40 quarts, now what equation model did Chin used in the scenario 

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6 0
3 years ago
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Elan Coil [88]

Answer:

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Step-by-step explanation:

7/9 × 2/3

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2. it's not B
Tanzania [10]

Answer:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

Point Form:

( 0 ,   1 )

Equation Form:

x = 0 ,     y = 1

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Graph.

y = − 5/ 2 x − 1

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y = 5/ 3 x + 1

4 0
2 years ago
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