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QOTD#25 The price of Mabel’s car, not including interest, is
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30 Apr 2017, 14:19
30 Apr 2017, 14:19
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Question Stats:
50% (01:17) correct
50% (00:52) wrong based on 10 sessions
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The price of Mabel’s car, not including interest, is 12 percent more than the price of Rose’s car. Combined, Mabel and Rose’s cars cost $53,000. If Mabel’s car loan interest rate was 5.20 percent, what was the total cost of Mabel’s car, including interest?
Drill 4
Question: 12
Page: 323
Question: 12
Page: 323
Show: :: OA
29,456
Re: QOTD#25 The price of Mabel’s car, not including interest, is
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04 May 2017, 01:30
04 May 2017, 01:30
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Expert Reply
Explanation
First set up the first part of the question to calculate Mabel’s car cost without interest.
Let Mabel = m and Rose = r.
So, 1.12r = m and r + m = 53,000.
Substitute: Since r + 1.12r = 53,000, then 2.12r = 53,000.
Solve: r = 25,000 and m = 28,000.
Now, you can multiply m by the interest rate. (28,000)(.052) = 1,456 of interest.
Add it to the price of the car to get \(28,000 + 1,456 = 29,456\).
Hence 29,456 is the correct answer.
First set up the first part of the question to calculate Mabel’s car cost without interest.
Let Mabel = m and Rose = r.
So, 1.12r = m and r + m = 53,000.
Substitute: Since r + 1.12r = 53,000, then 2.12r = 53,000.
Solve: r = 25,000 and m = 28,000.
Now, you can multiply m by the interest rate. (28,000)(.052) = 1,456 of interest.
Add it to the price of the car to get \(28,000 + 1,456 = 29,456\).
Hence 29,456 is the correct answer.
Re: QOTD#25 The price of Mabels car, not including interest, is
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04 Nov 2022, 08:07
04 Nov 2022, 08:07
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