Mathematics, 28.05.2021 17:10 emmazhu1106
A construction worker is making concrete by mixing sand, gravel, and cement in water. For each pound of sand, he uses pounds of gravel. For each pound of gravel, he uses pound of cement. He is making enough concrete that he needs to use 3 pounds of sand.
How many pounds of cement does he use?
A.
1 pound
B.
pounds
C.
2 pounds
D.
pounds
Answers: 2
Mathematics, 21.06.2019 19:00
What is the expression in factored form? -x^2 + 3x + 28 a. (x-7)(x-4) b. -(x-7)(x+4) c. (x+4)(x+7) d. -(x-4)(x+7)
Answers: 2
Mathematics, 21.06.2019 20:10
Ascientist has discovered an organism that produces five offspring exactly one hour after its own birth, and then goes on to live for one week without producing any additional offspring. each replicated organism also replicates at the same rate. at hour one, there is one organism. at hour two, there are five more organisms. how many total organisms are there at hour seven? 2,801 19,531 19,607 97.655
Answers: 1
Mathematics, 21.06.2019 22:00
Find an bif a = {3, 6, 9, 12) and b = {2, 4, 6, 8, 10).
Answers: 1
Mathematics, 21.06.2019 23:00
According to the general equation for conditional probability if p(anb)=3/7 and p(b)=7/8 what is p(a i b)
Answers: 1
A construction worker is making concrete by mixing sand, gravel, and cement in water. For each pound...
Mathematics, 27.07.2019 18:30
History, 27.07.2019 18:30
History, 27.07.2019 18:30
History, 27.07.2019 18:30
Social Studies, 27.07.2019 18:30
Social Studies, 27.07.2019 18:30
History, 27.07.2019 18:30
History, 27.07.2019 18:30
Biology, 27.07.2019 18:30
Biology, 27.07.2019 18:30
Health, 27.07.2019 18:30