Problema Solution
three butterfingers and one starburst cost $3. One butterfingers four kit-kats cost $2.80 One butterfinger, one starburst and one kit-kat cost $1.90. How much does each item cost.
Answer provided by our tutors
Let
b = the cost of one butterfinger
s = the cost of one starbust
k = the cost of one kit-kat
3b + s = 3
b + 4k = 2.80
b + s + k = 1.90
........
click here to see the system of equations solved for b, s and k
........
b = $0.80
s = $0.60
k = $0.50
The butterfinger costs $0.80 or 80 cents, the starbust costs $0.60 or 60 cents and the kit-kat costs $0.50 or 50 cents.