**Guide :High School **

# Two groups of people entered a Drive-In restaurant. The first group ordered 6

Two groups of people entered a Drive-In restaurant. The first group ordered 6 hamburgers and 5 orders of French fries, and paid $4.55. The second group ordered 10 hamburgers and 6 orders of French fri**So here is how we are going to answer the problem above:Given that f is the cost of French fries and b is the cost of Hamburger.So: 5f + 6b = 4.555f = 4.55 - 6b (multiply both sides by 6) and we get30f = 27.3 - 36bNext,6f + 10b = 7.00 (multiply both sides by 5) and we get30f + 50b = 35 (Now substitute the value of 30f)27.3 - 36b + 50b = 3514b = 35 - 27.314b = 7.7 (divide both sides by 14)b = 0.55Therefore, the cost per hamburger is $0.55Now go back to the cost of fries:30f = 27.3 - 36b30f = 27.3 - 36(0.55)30f = 27.3 - 19.830f = 7.5 (divide both sides by 30)f = 0.25Therefore, the cost per french fries is $0.25Hope this helps.**...