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Blizzard [7]
4 years ago
8

Sally is saving money to buy a new computer. The computer costs $689. She has saved $125, and each week she adds $25 to her savi

ngs. Assuming that she deposits her money once a week, how many weeks will it take her to save enough money to buy the computer?
A) 17 weeks
B) 22 weeks
C) 23 weeks
D) 24 weeks
Mathematics
2 answers:
muminat4 years ago
8 0

Answer:  C) 23 weeks

Step-by-step explanation:

Given: The cost o0f computer = $689

The amount sally saved = $125

The amount sally saved each week to her savings =  $25

Let x be the number of weeks it will take  her to save enough money to buy the computer.

Then 25x+125\geq689\\\\\Rightarrow\ 25x\geq564\\\\\Rightarrow\ x\geq22.56\\\Rightarrow\ x=23

In 23 weeks, Sally will save enough money to buy the computer.

dybincka [34]4 years ago
7 0
I would say D becuz when you stop at 24 weeks you get 625 which is the closest one to $689


Hope this helps!
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