The unit cost for each shirt is $6.50
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Answer: did you ever get the answer?
Step-by-step explanation:
P(TTTTT)=P(T)^5 and P(T)=1/2 so
P(TTTTT)=(1/2)^5
P(TTTTT)=1/32
Answer:
40
Step-by-step explanation:
i think? i may have not understood the picture correctly, so if this is wrong i apologise
We will define the following variables to solve the problem:
s: normal speed
t: normal time
We write the following system of equations:
6 = s * t
6 = (s + 3) * (t-7)
Rewriting the equation two we have:
6 = s * t -7s + 3t -21
Substituting:
s = 6 / t
6 = (6 / t) * t -7 (6 / t) + 3t -21
Multiplying both sides by t:
6t = 6t - 42 + 3t ^ 2 - 21t
Rewriting:
3t ^ 2 - 21t - 42 = 0
We take the positive root:
t = 7/2 + root (105) / 2
t = 8.62 h
We look for the value of the speed:
s = 6 / t
s = 6 / 8.62
s = 0.696 km / h
Answer:
she did travel 0.696 kilometers per hour