Which equation has no solution? a) 15x + 12 3 = 5x + 4 b) 8 − 4x 10 = 4 + 2x c) 4x − 20 2 = 2x − 10 d) 15x + 5 3 = 5x + 6

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?

Is trapezoid abdc the result of a dilation of trapezoid mnpq by a scale factor of ? why or why not? yes, because ab and cd are each the lengths mn and qp. yes, because sides ab and cd are parallel to sides mn and qp. no, because ab is the length mn but cd is the length qp. no, because sides ab and cd have different slopes from sides mn and qp.

Solve this and show you’re work step by step ! -5 3/4+3h< 9 1/4 -