Mathematics, 09.12.2019 19:31 lilakatedancer
Josh is 6 years older than 4 times kim's age. the sum of their ages is less than 31. what is the oldest kim could be? show all your work.
Answers: 3
Mathematics, 20.06.2019 18:04
Norma has an a-frame cabin. the back is shown below. how many square feet of paint will she need to cover the back of the cabin? explain how you found the answer.
Answers: 1
Mathematics, 21.06.2019 17:30
Cora bought a package of erasers. there are 4 pink erasers and 12 blue erasers. what is the ratio of pink erasers to blue erasers?
Answers: 2
Mathematics, 21.06.2019 20:50
An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.
Answers: 3
Mathematics, 21.06.2019 21:00
Out of $20$ creepy-crawly creatures in a room, $80\%$ are flies and $20\%$ are spiders. if $s\%$ of the total legs belong to spiders, what is $s$?
Answers: 2
Josh is 6 years older than 4 times kim's age. the sum of their ages is less than 31. what is the old...
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