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?

How many 12 inch rulers will be about the same length of a small room

What do the numbers 0.5, 5,49, and 0.3 reapeating have in common?

Can a polygon be equiangular but not equilateral?

At 12 pm there are 5 cells at 1 pm there are 10 cells at 2 pm there are 20 cells and at 3 pm there are 40 cells. how many cells will there be at 7 pm if the pattern continues?

Can you explain how to answer this question? Tara wants to set up 5 water coolers outside the skating rink to allow skaters to hydrate themselves. She buys 80 gallons to distribute evenly to each cooler and 8 ounce cups for drinking the water.

In the right triangle shown, mZV = 60° and UV = 18. U 60 How long is UW?

Megan is 8 older than Lauren. Jackie is two times Megan age, If the three girls' ages is 32, how old is each girl

In a bag there are 4 purple marbles, 3 green marbles, and 10 yellow marbles. If a student draws one marble what is the sample space?

Andrew invited 30 friends to his birthday party. Eighty percent of his friends came to the party the other 20 did not come to the party. Which fraction of his friends cane to the party answer

Which function's domain consists of all real numbers except 3? a) f (x) = 3x+3 b) f (x) = 3/x-3 c) f (x) = 3x^2 d) f (x) = 3x-3 e) f (x) = 1 / square root of x-3,