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3 years ago

10

Roger gets $40 per day as wages and $4.50 as commission for every pair of shoes he sells in a day. His daily earnings goal is $1

12. Write an equation to determine how many pairs of shoes, p, Roger must sell in a day to meet his daily earnings goal.

2 answers:

Strike441 [17]3 years ago

8 0

112 = 4.5p + 40
subtract 40 from both sides
72 = 4.5p
divide by 4.5 on both sides to get 'p' by itself
16 = p
this means that Roger must make 16 pairs of shoes in order to meet his daily earnings goal of $112

lyudmila [28]3 years ago

8 0

Answer:

112=4.5p+40

16

Step-by-step explanation:

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Binomial probability distribution

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This means that $p = 0.2$

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This means that $n = 16$

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This is:

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$P(X = 2) = C_{16,2}.(0.2)^{2}.(0.8)^{14} = 0.2111$

$P(X = 3) = C_{16,3}.(0.2)^{3}.(0.8)^{13} = 0.2463$

$P(X \leq 3) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) = 0.0281 + 0.1126 + 0.2111 + 0.2463 = 0.5981$

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