lilymoniquesalaiz
15.12.2020 •
Mathematics
Error Analysis A contractor purchases 6 dozen pairs of padded work gloves for $84.24. He incorrectly calculates the unit price as $14.04 per pair for the expense report. What is the correct unit price? What is the error?
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Ответ:
x = 3 . (the angle size is 21 + 18 = 39)
Step-by-step explanation:
7x + 18 + 51 + 90 = 180
18 + 51 + 90 = 159
159 + 7x = 180
-159 -159
7x = 21
/7 /7
x = 3