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## A college received 90% of its order of laptop keyboards from a vendor. Some of the keyboards were defective. The equation below

Question

A college received 90% of its order of laptop keyboards from a vendor.

Some of the keyboards were defective. The equation below represents this

situation, where x represents the total number of keyboards ordered and y

represents the number of keyboards that were non-defective. y = 0.9x –

1/18(0.9x) If the college ordered 200 keyboards, how many non-defective

keyboards did the college receive?*

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Mathematics
3 months
2021-07-21T10:03:46+00:00
2021-07-21T10:03:46+00:00 1 Answers
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## Answers ( )

Answer:170

Step-by-step explanation:Given that: x represents total number of keyboards ordered

y represents number of non-defective keyboards

And;

y = 0.9x – …………………….. 1

If the college ordered 200 keyboards, then x = 200. So that substituting the value of x in equation 1, we have;

y = (0.9 x 200) –

= 180 –

= 180 – 10

y = 170

The college received 170 non-defective keyboards.