Answer:
20 harnesses
36 leashes
Step-by-step explanation:
h = number of harnesses
l = number of leashes
set up two equations based on the information provided:
h + l = 56; since the number of harnesses and leashes made up the total item sold, which is 56
7.5h + 3.25l = 267; the same concept as the last step
h = 56 - l; let one of the variable stand by itself
7.5(56 - l) + 3.25l = 267; substitute the variable h into the other equation
420 - 7.5l + 3.25l = 267; solve
420 - 4.25l = 267; add common variables, remember you take the sign in front of the number when doing math
-4.25l = -153; subtract 420 from both side
l = 36; divide both side by -4.25
36 leashes were sold last month; 56 - 36 = 20, which means 20 harnesses were sold.
