Question

5 hockey pucks and 3 hockey sticks cost $23. 5 hockey pucks and 1 hockey stick cost $20. How much does 1 hockey puck cost?​

Answer 1

$3.65

Explanation:

let say hokey puck=p, hockey sticks=s

5P+3s=23.5

5p+1s=20, subtract first one from the second one:

5p+3s-5P-1s=23.5-20

2s=3.5

s=3.5/2=1.75 now substitute this to any of the equations: 5p+1x1.75=20 5P+1.75=20 5p=20-1.75 5p=18.25 p=3.65

Answer 2

Answe

5p + 3s = 23

5p + s = 20

s = 20 - 5p

5p + 3(20-5p) = 23

5p - 60 - 15p = 23

-10p = - 37

p = 3.70

s = 1.50r

Explanation: