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3 years ago

Jack has 12 pencils and 7 pens.how many more pencils than pens does he have

Mathematics

2 answers:

7nadin3 [17]3 years ago

8 0

12-7 = 5, therefore, there are 5 more pencils than pens.

ioda3 years ago

3 0

Twelve pencils minus the seven pens equals five so the the difference would be five. jack has five more pencils than he does pens.

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Now here a = 2x, b = (- 3y) and n = 10 and k = 0,1,2,….10

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Now, $\mathrm{T}_{6}=10 \mathrm{C}_{5} \times(2 \mathrm{x})^{(10-5)} \times(-3 \mathrm{y})^{5}=10 \mathrm{C}_{5} 2^{5} \times \mathrm{x}^{5} \times(-3)^{5} \times \mathrm{y}^{5}$

So, the coefficient of $x^{5} \times y^{5} \text { is }=10\left(5 \times 2^{5} \times(-3)^{5}\right$ .

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