Mathematics, 16.11.2020 07:50 steven122048i
Two mechanics worked on a car. The first mechanic worked for 15 hours, and the second mechanic worked for 5 hours. Together they charged a total of $1250. What was the rate charged per hour by each mechanic if the sum of the two rates was $120 per hour?
Answers: 1
Mathematics, 21.06.2019 14:10
Rachel reads 1/5 of the pages of a book plus 12 pages on the first day. on the second day, she reads 1/4 of the remaining pages plus 15 pages. on the third day, she reads 1/3 of the remaining pages plus 18 pages. on the fourth day, she reads the remaining 70 pages. how many total pages are in the book?
Answers: 2
Mathematics, 21.06.2019 19:10
Which ordered pair is a solution of the equation? y + 5 = 2(2+1) choose 1 answer ® only (5,10 ® only (-1,-5) © both (5, 10) and (-1,-5) 0 neither
Answers: 1
Mathematics, 21.06.2019 19:40
Atextile fiber manufacturer is investigating a new drapery yarn, which the company claims has a mean thread elongation of 12 kilograms with a standard deviation of 0.5 kilograms. the company wishes to test the hypothesis upper h subscript 0 baseline colon mu equals 12 against upper h subscript 1 baseline colon mu less-than 12 using a random sample of n equals 4 specimens. calculate the p-value if the observed statistic is x overbar equals 11.8. round your final answer to five decimal places (e.g. 98.76543).
Answers: 3
Mathematics, 21.06.2019 21:30
Hannah paid $3.20 for 16 ounces of potato chips. hank paid $3.23 for 17 ounces of potato chips. who paid less per ounces?
Answers: 1
Two mechanics worked on a car. The first mechanic worked for 15 hours, and the second mechanic worke...
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