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postnew [5]
4 years ago
11

Drake wants to save $750 so that he can take a class on computer analysis for cars. The class is being held on various dates ove

r the next several months. Drake is planning to take the class 6 weeks from now, so he plans to save $125 each week. Unfortunately, Drake had to take out a little money from his savings in the 3rd week. After 4 weeks, Drake has $470. He knows that he must adjust his plan in order to meet his goal. Drake came up with the following options: Option A: Stay with saving the original amount each week but take the class a week later than originally planned. Option B: Increase the amount of money he saves each week by $15 from his original plan. Which of the following is a true statement? a. Only option A will allow him to meet his goal. b. Only option B will allow him to meet his goal. c. Both options A and B will allow him to meet his goal. d. Neither option A nor option B will allow him to meet his goal.
Mathematics
1 answer:
luda_lava [24]4 years ago
3 0
Option A: He currently has $470 with 3 weeks to go (taking the class 1 week later as planned). Saving $125 each week for 3 weeks would give him a total of $845, giving him the needed money to take the classes.

Option B: He currently has $470 with 2 weeks to go. Instead of just saving up an amount of $125 per week for the remaining 2 weeks, he decides to add $15, saving up to $140 per week instead. Saving this amount for 2 weeks gives him $280, bringing his total to $750, which is enough for him to take the classes.
So, therefore, the answer is C.
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Hence Option A is true

Confidence interval is  0.071,1.928

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