5.7.PS-18 Question Help
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Reasoning Each month, a shopkeeper spends 5x + 11 dollars on rent and electricity. If she
spends 2x - 3 dollars on rent, how much does she spend on electricity? Use pencil and paper. For
which value(s) of x is the amount the shopkeeper spends on electricity less than $100? Explain
how you found the value(s).
She spends dollars on electricity.
(Simplify your answer.)
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Question 10
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US 10:

i dont know if you cant find a way its best to actually add all of them start from 105 tho

step-by-step explanation:

85.560%

step-by-step explanation:

conditional probability is defined as:

p(a|b) = p(a∩b) / p(b)

in other words, the probability that a occurs, given that b has occurred = the probability that both a and b occur / the probability that b occurs.

in this example:

p(turns 64 | turns 44) = p(turns 64 & turns 44) / p(turns 44).

if someone turns 64, they must have already turned 44, so:

p(turns 64 | turns 44) = p(turns 64) / p(turns 44)

on page 42, we see that of the original 100,000, 94944 turn 44, and 81234 turn 64.   therefore:

p(turns 64 | turns 44) = 81234 / 94944

p(turns 64 | turns 44) = 0.85560

answer: 0.26

i used the calculator on google