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A company manufactures nails that are meant to be precisely 10 cm long
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15 Mar 2021, 02:01
15 Mar 2021, 02:01
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85% (01:12) correct
14% (01:41) wrong based on 14 sessions
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A company manufactures nails that are meant to be precisely 10 cm long. The company devalues nails that differ in length from 10 cm. The amount a nail is devalued, in cents, is given by the function \(D(x)=6 \sqrt{|x-10|}\), where x represents the nail’s length in centimeters and D represents the amount of the devaluation in cents. How much is a nail measuring 9.91 cm devalued?
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Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
Show: :: OA
1.8 cents
Kudos for the right answer and explanation
Question part of the project GRE Quantitative Reasoning Daily Challenge - (2021) EDITION
GRE - Math Book
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Re: A company manufactures nails that are meant to be precisely 10 cm long
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15 Mar 2021, 05:29
15 Mar 2021, 05:29
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[quote="Carcass"]A company manufactures nails that are meant to be precisely 10 cm long. The company devalues nails that differ in length from 10 cm. The amount a nail is devalued, in cents, is given by the function \(D(x)=6 \sqrt{|x-10|}\), where x represents the nail’s length in centimeters and D represents the amount of the devaluation in cents. How much is a nail measuring 9.91 cm devalued?
\(D(x)=6 \sqrt{|x-10|}\)
\(D(x)=6 \sqrt{|9.91-10|}\)
\(D(x)=6 \sqrt{0.09}\)
\(D(x)=6(0.3)\)
\(D(x)=1.8\)
Show: :: OA
1.8 cents
\(D(x)=6 \sqrt{|x-10|}\)
\(D(x)=6 \sqrt{|9.91-10|}\)
\(D(x)=6 \sqrt{0.09}\)
\(D(x)=6(0.3)\)
\(D(x)=1.8\)
gmatclubot
Re: A company manufactures nails that are meant to be precisely 10 cm long [#permalink]
15 Mar 2021, 05:29
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