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olganol [36]
2 years ago
10

East high schools student council plans to buy some stools and chairs for a new student center they need to buy 25 more chairs a

nd stools the chairs cost $32 each and the stools cost $28 each if the budget is $2620 how many chairs can they buy
Mathematics
1 answer:
vova2212 [387]2 years ago
7 0

Answer:

let

s = the number of stools bought, s is integer

c = the number of chairs bought, c is integer

they need to buy 25 more chairs than stools

c = s + 25 => s = c - 25

the chairs cost $32 each and the stools cast $28 each and the budget is $2,620

32c + 28s <= 2620

if i plug s = c - 25 in the above inequality i get

32c + 28(c - 25) <= 2620

by solving the inequality we find

c <= 55.33

since c is integer we can write c<=55

they can buy 55 chairs the most.

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A student flips a fair coin 6 times. Answer the following questions: 1. Suppose that after flipping the coin all six times the e
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2. If the experimenter records the result after each flip (H or T), for the first flip she has 2 results (heads or tails), for the second one she has 2 results, same for the third, fourth, fifth and sixth flip.

Therefore the possible outcomes are: (2)(2)(2)(2)(2)(2)=2^{6}=64.

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G. Is not possible because she should've stopped once she got heads in the fourth and fifth flip.

H. Is possible because she got heads in the second and  third flip.

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