Mathematics, 23.08.2020 02:01, almavaldez45

the speed of a boat in still water is 15 kilometre per hour and the speed of a stream is 5 kilometre per hour find the time taken by the board to cover 40 km upstream

Answers: 2

Show answers

Other questions on the subject: Mathematics

Mathematics, 21.06.2019 19:00, czp

Two times a number plus three times another number equals 4. three times the first number plus four times the other number is 7. find the numbers

Answers: 1

continue

Mathematics, 21.06.2019 19:00, karellopez96

List the sides of δrst in ascending order (shortest to longest) if: m∠r =x+28°, m∠s = 2x+16°, and m∠t = x+12

Answers: 1

continue

Mathematics, 21.06.2019 21:30, jtorres0520

Suppose that sahil knows that 45 people with ages of 18 to 29 voted. without using a calculator, he quickly says then 135 people with ages of 30to 49 voted. is he correct? how might sohil have come up with his answer so quickly?

Answers: 3

continue

Mathematics, 21.06.2019 21:50, zymikaa00

Scores on a university exam are normally distributed with a mean of 78 and a standard deviation of 8. the professor teaching the class declares that a score of 70 or higher is required for a grade of at least “c.” using the 68-95-99.7 rule, what percentage of students failed to earn a grade of at least “c”?

Answers: 1

continue

Do you know the correct answer?

the speed of a boat in still water is 15 kilometre per hour and the speed of a stream is 5 kilometre...