Carmine paid an electrician x dollars per hour for a 5-hour job plus $70 for parts. The total charge was $320. Which equation can be used to determine how much the electrician charged per hour?

Jalyn collected 24 stones. She put them in 4 equal piles. How many stones are in each pile?

Write an equation to represent the number puzzle. Use x as the variable. Then find the solution using guess-check-and-improve. 6 times a number, plus 2, is equal to 7 added to 4 times the number. What is the number? a. 6x + 2 = 7 + 4x, 3 b.

What is the constant of variation for xy=12

You are designing an aquarium that is to have a tank holding 225,000 gallons of water. The tank will be 100 feet long and 20 feet wide. Note, 7.5 gallons = 1 cubic foot of water. How high will the tank need to be?

Which equation can be used to solve the following word problem? Emilio has 6 more nickels than dimes, and the total value of his coins is $2.10. How many nickels does he have? Let n represent the number of nickels. A:0.10 (n-6) + 0.05n=2.10 B: 0.

Teaching descriptive statistics. A study compared five different methods for teaching descriptive statistics.

At a movie theater, the cost of admission to matinee is $5.25. If this price represents a 30% discount from the evening price, find the evening price to the nearest cent

Eight and one sixth minus 3 and five sixth

Suppose babies born in a large hospital have a mean weight of 4090 grams, and a variance of 313,600. If 64 babies are sampled at random from the hospital, what is the probability that the mean weight of the sample babies would differ from the

Micah buys a used car for $10,000 and spends $200 on a new radio that is made in the u. s. the end result of these two transactions is