Mark and jose have a combined weight of 270 pounds. mark weighs 30 pounds less than twice jose's weight. how much do mark and jose weigh

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

How is working backward similar to solving an equation?

The statements below can be used to prove that the triangles are similar. ? △abc ~ △xyz by the sss similarity theorem. which mathematical statement is missing? ∠b ≅ ∠y ∠b ≅ ∠z