Demarcus and fabian live 23 miles apart and play soccer at a park between their homes demarcus rode his bike for 3/4 of an hour and fabian rode his bike for 1/2 of an hour to get to the park fabian speed of 60 mph faster than the demarcus's speed find the speed of the soccer players

Step-by-step explanation:

3/4r + 1/2(r+6)=23

3/4r + 1/2r +3=23

5/4r =20

Multiplying by 45 yields r=16

DaMarcus's speed is r=16 miles per hour & Fabian's speed is r+6=22 miles per hour.

step-by-step explanation:

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.