Brass is an alloy made from copper and zinc in the ratio 3:2, based on weight. If 120g of copper are needed for a certain piece of brass, how much zinc will be needed for the same piece?

1/2% + 1/4%=? whats the awnser?

A $60 jacket is on sale for 20%off. explain the two steps you would take to find the total cost of the jacket. identify the new cost

Tim is painting his storage shed. He buys 4 gallons of white paint and 3 gallons of bule paint. Each gallon of white paint cost $15.73, and each gallon of blue paint is $21.87. How much will Tom spend in all on paint

F (x) = 9x^3+2x2-5x+4 and g (x) = 5x^3-7x+4. What is f (x) - g (x) ? show all steps and final answer

The length of rectangular field is 7 m less than 4 times the width. The perimeter is 136 m. Find the width and length

A bus driver drives 547.25 miles on day 1, on day 2, he drives 327.875, how many more miles did he drive the first day than the second day

When a line is reflected over the y-axis, the result is A. a line. B. a square. C. an angle. D. a rectangle.

Solve using substitution. 2x-3y x+y=9 just so you know, I know the answer its (3,6). I just need the explanation on how to get that answer using substitution.

A speed boat is traveling at 100 km/hr. How many hours will it take for the boat to cover a distance of 115 km?

A die contains the numbers 1 through 6. David rolls the die 2 times. What is the probability of getting a 3 on the first roll and a 5 on the second roll?