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Alexus [3.1K]
3 years ago
7

Out of the 21 students in mrs Clark’s class by 3/7 of the class are boys

Mathematics
2 answers:
saul85 [17]3 years ago
7 0

Answer:

There are 9 boys and 12 girls in mrs Clark's class

Step-by-step explanation:

We are given that mrs Clark has 21 students, of which 3/7 are boys

In order to find the number of boys, we multiply 21 by 3/7 which results in 9

This means there are 9 boys and then we just simply subtract 9 from 21 in order to find the number of girls 21-9=12

therefore there are 9 boys and 12 girls in mrs Clark's class

Ira Lisetskai [31]3 years ago
6 0

Answer:

9 boys

Step-by-step explanation:

because 3 can subtract  in 21  7 time

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The length of a rectangle is 3 times the width.If the length is decreased by 4 m and the width is increased by 1 m , the perimet
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Answer:

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Step-by-step explanation:

Consider the width to be x.

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3 years ago
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Step-by-step explanation:

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