Which of the following has infinitely many solutions? A)5x−10=x+20

B)2(6+x)=14+2x

C)10x+5=3(5x+7)

D)2(4+x)=8+2x

Ametalworker has a metal alloy that is 30? % copper and another alloy that is 55? % copper. how many kilograms of each alloy should the metalworker combine to create 90 kg of a 50? % copper? alloy?

Factor x2 – 8x + 15. which pair of numbers has a product of ac and a sum of what is the factored form of the

You’re giving a cube with a length of 2.5 cm and a width of 2.5 cm and a high of 2.5 cm you place it on a scale and it is 295 g calculate the density