Answer
Number of Reese's is 5 and numbers of Snickers bars is 7
Work Step by Step
s = # of Snickers bars
r = # of Reese's
Total number of bars:
s + r = 12
Total fat
14s + 13.7r = 2(70) + 26.5
14s + 13.7r = 166.5
s + r = 12 can also be written as s = 12 - r. Plug this into 14s + 13.7r = 166.5
14(12 - r) + 13.7r = 166.5
168 - 14r + 13.7r = 166.5
168 - 0.3r = 166.5
1.5 = 0.3r
r = 5
Number of Reese's is 5
Plug r into s + r = 12
s + 5 = 12
s = 7
Numbers of Snickers bars is 7
