Suppose y varies jointly with x and z. If y=20 when x=2 and z=5, find y when x=14 and z=8.

Find the least common denominator of the following pair of fractions: 7/8 1/2 a. 16 b. 8 c. 24 d. 2 can someone explain?

A contractor wishes to build 9 houses, each different in design. In how many ways can he place these houses on a street if 6 lots are on one side of the street and 3 lots are on the opposite side?

A total of 390 tickets were sold for the play. They were either adult tickets or students tickets. There were 60 fewer student tickets sold than adult tickets. How many adult tickets were sold?

What does 2x+3x equal i forgot how to do this

Gas mileage is the number of miles you can drive on a gallon of gasoline. A test of a new car results in 340milee on 10 gallons of gas. How far could you drive on 40 gallons of Gas? What is that rate per hour?

Escriba una exprecion q represente am+m+m+m

Lisa is loading 75 chairs into a truck. If h represents the number of chairs that she can carry in one load, which expression represents the total number of loads needed to move all the chairs?

Bruce wants to make sure that each tiger at the zoo has 1,000 square feet of space. He wants to write an equation to represent the relationship between the number of tigers, t, and the number of square feet of space, f.

What is 120 times 250

The circumference of the earth is approximately 24,901 miles. The circumference of the earth's moon is about 72.76% smaller than the earth's circumference. What is the approximate radius of the earth's moon? A. 1,079.55 miles B. 6,783.03 miles c.