Solve the system of equations.

3x + 4y + 4z = 4

5x + 7y + 3z = 5

4x + 5y + 72 = 7

a. (x = 10, y = - 7, z = 2)

b. (x = 7, y = - 4, 2 = 1)

c. (x = 8, y = - 5,2 = 0)

d (x = 9, y = - 6,2=-1)

Break apart ones to make a ten. Then add and write the sum 62+9

What is the place value for 5 in the number 12354897

Demarco wrote two correct variable expressions to represent the phrase "the product of a number and 7". which variable expressions could demarco have written? select each correct answer. n/7 n⋅7 7n 7/n

A palm tree casts a shadow that is 28 feet long. A 6-foot sign casts a shadow 8 feet long the palm tree?

X - 20 + x equals 180

A track and field playing area is in the shape of a rectangle with semicircles at each end. The perimeter of the track is to be 1200 meters.

Nicole has a stack of 50 dishes to wash. It took her 2 minutes to wash 8 dishes. At this rate, how long will it take Nicole to wash all 50 dishes?

Jack bought 5 pounds of holloween candy. He gave out 3 pounds of the candy to trick or treaters and ate 10 ounces of the candy. How many ounces oof halloween candy does jack have

What is the value of n (-y+5.3) + (7.2y-9) = 6.2y+n

What is the momentum of a 79-kilogram ice skater gliding across the ice at a speed of 16 m/s?