To complete a job, it takes: 2 hours for Alice and bob, 3 hours for Alice and Charlie and 4 hours for bob and Charlie. How long will the job take if all three work together?

What does the pythagoras famous theorem involve

1/2 gallons equal how many cups

Which variable is the easiest to turn in to opposites? Why? 2x + 4y = 5 3x - 5y = 6

Tina practiced piano for 15 hours last month and 45 hours this month. use multipilication to write a statement comparing the hours tina practiced during the two months

A high school athletic department bought 40 soccer uniforms at a cost of$3,000. after soccer season, they returned some of the uniforms but only received $40 per uniform.

If y varies directly with with x and y=20 when x = 2.5, what is the value of y when x = 8? (type the numerical value of x only)

If x1=4, compute the value of x2 if the mean is 1

30 people go for dinner it costs £240.93 how much should each person pay

Dan built deck that is 5 feet long and 5 feet wide He built another deck that is 5 feet long and 7 wide. He built a third deck that is 5 feet long and 9 feet wide. How do the areas change?

It takes Anjali eight minutes to wax a floor. Shayna can wax the same floor in 12 minutes. Find how long it would take them if they worked together.