A tank can be emptied by one pipe in 40 minutes and by another in 30 minutes. If the tank is 7/8 full, how long will it take to empty it when both pipes are open? (15 min)

If 1 is divided by the sum of y& 4.the result is equal to 3 divided by 4, find the value of m

Abouncy ball is released from a certain height. on the first bounce, it travels 32cm. with each subsequent bounce, it travels 9/10 the distance of the previous bounce. what is the total distance that the ball has traveled when it completes its 25th bounce?

What is the value of x in the equation 1.5x+4-3=4.5(x-2)?