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3 years ago

A= B= C= D= I don’t get this at all help please

Mathematics

1 answer:

Tcecarenko [31]3 years ago

3 0

Answer:

A=41

B=20

C=8

D=3

Step-by-step explanation:

You need to first of all fill the intersection (yellow region). This is the number of people who use both.

This means B=20

Region A is those who use F only. So you must subtract the number who use both.

This means that A=61-20=41

Region C is those who use G+ only.

This means C=28-20=8

Now A+B+C+D=72

This implies that:

41+20+8+D=72

69+D=72

D=72-69

D=3

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4 years ago

The ratio of boys to girls in a group is 7:1. If there are 66 more boys than girls, work out how many girls there are

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4 years ago

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