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
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You eat 8 strawberries and your friend eats 12 strawberries from a bowl. there are 20 strawberries left. which equation and solution give the original number of strawberries?
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Mathematics, 21.06.2019 17:00
Evaluate the expression for the given value of the variable 2×(c2-5) for c=4
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The rectangle shown has a perimeter of 108 cm and the given area. its length is 6 more than five times its width. write and solve a system of equations to find the dimensions of the rectangle.
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6. solve: a chemist needs 30 ounces of 50% hydrochloric acid solution. in her lab, she has some 80%...
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