Mathematics, 06.07.2019 23:00 eddiecas
6. solve: a chemist needs 30 ounces of 50% hydrochloric acid solution. in her lab, she has some 80% hydrochloric acid solution, some 60% hydrochloric acid solution, and some 40% hydrochloric acid solution. she must use 2 ounces of the 80% solution. how many ounces each of the 40% and 60% solutions must be mixed with the 2 ounces of 80% to obtain the 30 ounces of 50% hydrochloric acid solution she needs?
Answers: 1
Mathematics, 21.06.2019 13:40
Vip at (-2,7) dropped her pass and moved to the right on a slope of -9 where can you catch up to her to return her vip pass
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Mathematics, 21.06.2019 21:50
Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is . reset next
Answers: 1
Mathematics, 21.06.2019 22:00
The evening newspaper is delivered at a random time between 5: 30 and 6: 30 pm. dinner is at a random time between 6: 00 and 7: 00 pm. each spinner is spun 30 times and the newspaper arrived 19 times before dinner. determine the experimental probability of the newspaper arriving before dinner.
Answers: 1
Mathematics, 22.06.2019 01:30
Which shaded region is the solution to the system of inequalities? y y[tex]\geq[/tex]-x+1
Answers: 3
6. solve: a chemist needs 30 ounces of 50% hydrochloric acid solution. in her lab, she has some 80%...
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