Dirk can clean a playground in 5 hours. Geralyn can clean a playground in only 4 hours. Which of the following can be used to determine the amount of time it would take for Dirk and Geralyn to clean a playground together?

Is 11x - 4=18; 2 a solution?

Henry is staining the wooden floor of a court. The court is in the shape of a rectangle. Its length is 54 feet and its width is 30 feet. Suppose each can of wood stain covers 135square feet. How many cans will he need to cover the court?

P (2, 7), Q (6, 3) find the gradient of PQ

A sector of a circle whose radius is 4 centimeters, has a central angle of 30 Which of the following. which of following represents the area of this sector in square centimeters? (1). 12π/5 (2). 8π/15 (3). 4π/3 (4). 6π/5

The inn has ten rooms. 1/2 of the rooms are reserved for friday. the rest are vacant. If 2 more rooms are reserved for friday, what will be the total number of occupied rooms on friday?

What time is 46 minutes before 2:10 pm

James recently installed a new pool in his backyard the pool is 20 ft long 15 feet wide and 5 ft deep, what is the volume

Solve y=-x+2 and y=-2x-1 as a graph, substitution, or elimination?

Complete rate table for spaghetti ingredients 12 ounces of spaghetti sauce need 16 ounces of tomato's what does 1 oz sauce equal to tomatoes

Find the height of a triangle with an area (a) of 35 square inches and base (b) of 7 inches. Use the formula for the area of a triangle, a = 1/2bh