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3 years ago

12

there are 30 students on the debate team and 20 students on the math team. ten students are on both the math team and debate tea

m. what is the total number of students on either team?

2 answers:

alexandr1967 [171]3 years ago

8 0

The answer would be 40 because 30+20-10=40

Rufina [12.5K]3 years ago

8 0

Answer:

The solution is 40.

n(D U M) = n(D) + n(M) - n(D ∩ M)

= 30 + 20 - 10

= 40 students

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3 years ago

postnew [5]

$2 \frac{5}{8} \div 2 \frac{1}{2}$
Change the mixed fractions to improper fractions.
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You would now have:
$\frac{21}{8} \div \frac{5}{2}$
Change the division sign to a multiplication sign by turning the second fraction upside down.
That is,
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This can be simplified to:
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