nat, jarrod and kate score a total of 84 points in a game. nat scores twice as many points as jarrod and six more than kate. how many points does jarrod score?

Answer 1

N+J+K=84

N=2J

N=K+6

K=N-6 = 2J-6

substitute 2J for N and 2J-6 for K into the equation N+J+K=84 to get

2J + J + 2J-6 = 84

5J-6 = 84

5J =84+6 = 90

5J = 90

J = 90/5 = 18 points for Jarrod

N=36 points for Nat

K=30 for Kate

36+30+18 = 84