One person can do a certain job in fifteen minutes, and another person can do the same job in thirty minutes. How many minutes will it take them to do the job together?

5 min

10 min

20 min

What is 4y times 4y in mathematics

Sasha is building a tree house. The walls are 6.5 feet tall, and she is using a brace to hold up the wall while she nails it to the floor. The brace is 8 feet long.

Each case of almond bars contains 9 smaller boxes. Each smaller box contains 24 almond bars. How many almond bars are in each case?

F (x) = - x2 - 9x - 22

In a triangle ABC, if angle B = 60° and the ratio of two sides is a: C = 2: sqrt3 + 1, then angle A = 45° 40° 35 55°

A salesperson makes $200 per week and $35 bonus for each person, x, he signs up. Which expression represents the total amount of money the salesperson makes in a week? 200x + 35 35 (x+200) 200 (x+35) 200 + 35x

Find the value of x round to the nearest tenth 20 35

Ed fills his sports bottle with 1.2 liters of water. After his bike ride, he drinks 200milimeters of the water. How much water is left in Ed's sports bottle

A building cast a shakedown that is 12 meters long. The distance from the top of the building to the top of the shadow is 20 meters. Determine the height of the building

A person operating a machine can mow 0.75 acres in ½ hour. What is the rate, in acres per hour, that the person can mow? Write your answer as a decimal.