D is the centroid of triangle SQR. Find x and SD if SD = x + 6 and DW = x – 4

How many kilograms of a 5% salt solution and how many kilograms of a 15% salt solution must be mixed together to make 45kg of an 8% salt solution?

Find the unit rate for: 75% high-fiber chimp food to 25% high -protein chimp food.

Proving the parallelogram diagonal theoremgiven abcd is a parralelogam, diagnals ac and bd intersect at eprove ae is conruent to ce and be is congruent to de