Use back-substitution to solve the system. 13. -x + 14. x - y - z = 0 2y + z = 3 zz = 0 y = 4 2y + z = 6 3z = 6

About 60% of the normal humanbeing's body weight is composed ofwater. how much of a 125 poundperson is water weight? f 72 pounds h 76 poundsg 75 pounds i 80 pounds

Assemble the proof by dragging tiles to the statements and reasons column

Two cyclists 84 miles apart start riding toward each other at the samen time. one cycles 2 times as fast as the other. if they meet 4 hours later what is the speed (in miles) of the faster cyclists