A metalworker has a metal alloy that is 20 % copper and another alloy that is 65 % copper. How many kilograms of each alloy should the metalworker combine to create 120 kg of a 47 % copper alloy?

Thirty pounds of a salt-water solution contains fifteen percent salt. How much salt is in the water? 1.5 lb 3 lb 4.5 lb

Y=-2x+1, y=-2/3x+5 solve using substitution

Is 3x + 5 = 3x - 5 one solution or no solution

60 divide by p as a fraction

What is the difference of the polynomials

The graph of the function f (30x) can be obtained from the graph of y=f (x) by one of the following actions: a) horizontally stretch the graph of f (x) by a factor of 30 b) Horizontally compress the graph of f (x) by a factor of 30 c) vertically

kayla has 2,000 stickers in her collection mariah had 1/100 of that amount how many stickers does mariah have

The answer is 1 -3 (9) - 4 (7) (-1)

In the inequality, what are all the possible values of x? 2 - 3 (2x + 1) < 6x (2 - 4) A) x ≥ 1 6 B) x ≤ 1 6 C) x ≥ - 1 6 D) x ≤ - 1 6

How to find the sum of the squares of the roots of an equation?