leigha2018 leigha2018
  • 06-02-2020
  • Mathematics
contestada

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

A B C D I dont get this at all help please class=

Respuesta :

kudzordzifrancis
kudzordzifrancis kudzordzifrancis
  • 12-02-2020

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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