Mathematics, 05.10.2019 09:40, roxanneee2145

If bob can mow a lawn in 2 hours and tim can mow the same lawn in 4 hours, how long will it take if they work together?

Answers: 2

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 21:30, amesha62

In a test for esp (extrasensory perception), a subject is told that cards only the experimenter can see contain either a star, a circle, a wave, or a square. as the experimenter looks at each of 20 cards in turn, the subject names the shape on the card. a subject who is just guessing has probability 0.25 of guessing correctly on each card. a. the count of correct guesses in 20 cards has a binomial distribution. what are n and p? b. what is the mean number of correct guesses in 20 cards for subjects who are just guessing? c. what is the probability of exactly 5 correct guesses in 20 cards if a subject is just guessing?

Answers: 1

continue

Mathematics, 21.06.2019 23:00, bustillojoshua4

According to the general equation for conditional probability if p(anb)=3/7 and p(b)=7/8 what is p(a i b)

Answers: 1

continue

Mathematics, 22.06.2019 00:00, kiki4832

Yvaries directly as x. y =90 when x=6. find y when x=13

Answers: 1

continue

Mathematics, 22.06.2019 01:30, mmczora22

Determine if the solution set for the system of equations shown is the empty set, contains one point or is infinite. x + y = 5 x + y = 7 {} 1 solution infinite

Answers: 1

continue

Do you know the correct answer?

If bob can mow a lawn in 2 hours and tim can mow the same lawn in 4 hours, how long will it take if...