Mathematics, 27.06.2019 05:30, sagereagin

An electric filter purifies air at the rate of 35 liters per minute and uses energy at the rate of 0.8 joules per minute. it also purifies water at the rate of 25 liters per minute and uses energy at the rate of 1.3 joules per minute. the filter is expected to purify more than 1000 liters of air and water while using less than 170 joules of energy. let a denote the number of minutes it spends purifying air and w the number of minutes it spends purifying water.

Answers: 1

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 19:30, unknown337

Complete the synthetic division problem below. what is the quotient in polynomial form 2/16 -16

Answers: 3

continue

Mathematics, 21.06.2019 23:00, princessroseee769

40 points. given: two congruent angles ∠c and ∠r are supplementary. prove: ∠r and ∠c are both right angles. it doesn't have to be exactly 10 rows. statements reasons1. 1. 2. 2. 3. 3. 4. 4. 5. 5. 6. 6. 7. 7. 8. 8. 9. 9. 10. 10.

Answers: 2

continue

Mathematics, 21.06.2019 23:00, noahdwilke

36x2 + 49y2 = 1,764 the foci are located at: (-√13, 0) and (√13,0) (0, -√13) and (0,√13) (-1, 0) and (1, 0)edit: the answer is (- the square root of 13, 0) and (the square root of 13, 0)

Answers: 1

continue

Mathematics, 22.06.2019 01:10, tashatyron24pejls0

|z| > (1/2) {-1/2, 1/2} {z|(-1/2) < z < (1/2)} {z|z < (-1/2) ∪ z > (1/2)}

Answers: 3

continue

Do you know the correct answer?

An electric filter purifies air at the rate of 35 liters per minute and uses energy at the rate of 0...