A metal alloy that is made up of 15% aluminum is combined with a metal alloy that is 35% aluminum. If the result is 400 kilograms of 27.5% of aluminum alloy, then how much of each alloy was used

What is 5x^2 - 15x - 20

24 disc four display racks hold 32 disc how many racks are needed

Kristyaks Lonnie to think of a number at 3 to it multiply The Sound by two and then subtract 6 letter n stand for Lonnie starting number which expression represents Lonnie's final number

What is the equation of the line that passes through (4, 3) and (2, 2) ? y=2x-2 y=1/2x+2 y=1/2x+1 y=1/2x+2 1/2

If a=4, then 2a + 72.6 - a=

Are 5/10 and 1/6 equivalent ratios

How to subtract two polynomials

What is 625/18 as a whole number or an improper fraction

Two systems of equations are shown. The first equation in system B is the original equation in system A. The second equation in system B is the sum of that equation and a multiple of the second equation in system A.

Whats the formula of 90 degrees