A contractor purchases 3 dozen pairs of padded work gloves for $40.68. incorrectly calculates the unit price as $13.56 per pair for the expense report. What is the correct unit price? What is the error?

Answer

$1.13 per pair.

Step-by-step explanation

There are 12 gloves in a dozen, so if you buy 3 dozen pairs you would have 36 pairs of gloves. To find what each pair costs you want to divide $40.68 by $13.56 giving you $1.13 dollars per pair. The problem was, the contractor just divided $40.68 by 3 since there was 3 dozen gloves, not counting all the pairs in total.

2

step-by-step explanation:

a_n = a_1 + (n - 1)d

the first term is 6.

the common difference d = ?

when you find d, replace n with 7 and d with the common difference to find your answer.