:3
The question is; 1. At a fundraiser breakfast, the bill for three glasses of orange juice and five pancake specials is $7.60, whereas the bill for one glass of orange juice and two pancake specials is $2.90. a. Write a system of two equations to model this problem. Let j stand for the price of a glass of juice and let p stand for the price of a pancake special. b. Use the substitution method to solve the system of equations. c. What would be the bill for one glass of orange juice and one pancake special?
My answer is:
7.6 = 3j + 5p 2.9 = 1j + 2p isolate āJā from the second equation, then substitute it in the first equation second equation: 2.9 = 1j + 2p j = 2.9 - 2p substitute this value in first equation : 7.6 = 3(2.9-2p) + 5p Solve for p; 7.6=8.7-1p So, 7,6 = 8.7 ā p 7.6 - 8.7 = -p -1.1 = -p 1.1 = p so the price of one pancake is $1.1 now ill plug it into the second equation plug it in second equation : 2.9 = 1j + 2p 2.9 = 1j + 2*1.1 2.9 = j + 2.2 0.7 = j j = 0.7 so the solution is ; p = 1.1,~~j = 0.7 so $1.1 pancake, and $0.7 juice So the total price needed to pay is $1.71
@Nnesha
Join our real-time social learning platform and learn together with your friends!