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nata0808 [166]
3 years ago
15

According to a recent survey, 24 students

Mathematics
2 answers:
konstantin123 [22]3 years ago
6 0
Answer= 80 students took part
30%=24
10%= 8
100= 8x10 = 80
babunello [35]3 years ago
5 0

Answer:

80 students.

Step-by-step explanation:

30% = 24 students

10%     = 24/3 = 8

100% = 8*10 = 80 students.

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<u>Answer:</u>

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<u>Solution: </u>

The given expression is (2 x-3 y)^{10}

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(x+y)^{n}=\sum n C_{k} x^{n-k} y^{k}

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10 \mathrm{C}_{5}=\frac{10 !}{5 ! \times(10-5) !}=\frac{10 !}{5 !+5 !}=\frac{10 \times 9 \times 8 \times 7 \times 6 \times 5 !}{5 ! \times 5 !}=\frac{10 \times 9 \times 8 \times 7 \times 6}{5 \times 4 \times 3 \times 2 \times 1}=\left(\frac{30240}{120}\right)=252

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