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Gary And Michelle Are Taking Lunch Orders For Their Office Training Session. A Turkey Club Sandwich Cost $3.75 And A Roast Beef Sandwich Costs $3.50. They Collected $36.25 From The Group Of 10 People. How Many People Ordered Turkey ?

Respuesta :

3.75x + 3.50y = 36.25     where x and y  are the number of people to order turkey and beef respectively.
also we x + y = 10

so we have to solve this system of 2 equations

from the second equation y = 10 -x so substituting in first equn.:-

3.75x + 3.50(10-x) = 36.25
0.25x = 36.25 - 35 = 1.25
x = 1.25 / 0.25 = 5

so 5 people ordered turkey


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