Mathematics, 26.02.2021 21:40 NatalieZepeda

Dan wants to determine the number of litres of a 20% acid cleaning solution he should combine 80% cleaning solution to create 50 litres of 60% acid cleaning solution

Answers: 1

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 15:40

Jonathan pays $1.90 per pound for potatoes. he buys 8.3 pounds of potatoes. he determines that he will pay $15.77, before tax, for the potatoes. which best describes the reasonableness of jonathan’s solution? jonathan’s answer is reasonable because there are two decimal places in the factors and two in the product. jonathan’s answer is unreasonable because there are three decimal places in the factors and two in the product. jonathan’s answer is reasonable because is 16, and 16 is close to 15.77. jonathan’s answer is unreasonable because is 8, and 8 is not very close to 15.77.

Answers: 1

Answer

Mathematics, 21.06.2019 19:10

The linear combination method is applied to a system of equations as shown. 4(.25x + .5y = 3.75) → x + 2y = 15 (4x – 8y = 12) → x – 2y = 3 2x = 18 what is the solution of the system of equations? (1,2) (3,9) (5,5) (9,3)

Answers: 1

Answer

Mathematics, 21.06.2019 19:40

Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297

Answers: 1

Answer

Mathematics, 21.06.2019 20:00

Which expression is rational? 6. , square root two, square root 14, square root 49

Answers: 1

Answer

You know the right answer?

Dan wants to determine the number of litres of a 20% acid cleaning solution he should combine 80% cl...

Questions

Mathematics, 10.10.2021 22:40

You can verify that your answer is a solution to the original equation by checking if Testing what what testing is a true statement. Which property of...