Please help me! Is the answer 22.25?
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Answers: 3
Mathematics, 21.06.2019 15:00
Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?
Answers: 1
Mathematics, 21.06.2019 16:30
We have enough material to build a fence around a station that has a perimeter of 180 feet the width of the rectangular space must be 3 1/4 feet what must the length be
Answers: 1
Mathematics, 21.06.2019 20:30
Martha has a deck of cards. she has lost some of the cards, and now the deck only contains nine spades, eleven diamonds, eight clubs, and twelve hearts. martha predicts that whenever she draws a card from the deck without looking, she will draw a club one-fifth of the time. which activity would best allow martha to test her prediction? a. randomly draw a card from the box and see if it is a club. b. randomly draw a card. then, continue to draw another card until all eight clubs are drawn. c. randomly draw and replace a card 120 times. then, observe how close to 30 times a club is drawn. d. randomly draw and replace a card 100 times. then, observe how close to 20 times a club is drawn.
Answers: 3
Mathematics, 21.04.2021 21:10
Mathematics, 21.04.2021 21:10
Mathematics, 21.04.2021 21:10
Mathematics, 21.04.2021 21:10
Mathematics, 21.04.2021 21:10
Mathematics, 21.04.2021 21:10
Mathematics, 21.04.2021 21:10
Mathematics, 21.04.2021 21:10
Mathematics, 21.04.2021 21:10
Mathematics, 21.04.2021 21:10
Biology, 21.04.2021 21:10
Biology, 21.04.2021 21:10