Question

(1) Solve this system using the substitution method: y = x – 1; 4x – 3y = 6
(2) Solve this application problem using a system of equations: Quick Mart recently sold a bag of
oranges for $0.76 and a bag of grapes for $3.68. At the end of that day, 50 bags of oranges and
grapes were sold for a total of $128.52. How many bags of each were sold?

Answer 1

Answer:

(1)x=3, y=2

(2)x=19, y=31

Step-by-step explanation:

(1)

4x-3(x-1)=6

4x-3x+3=6

x+3=6

x=3

(2)

.76x+3.68y=128.52

x+y=50

.76x+3.68(50-x)=128.52

.76x+184-3.68x=128.52

.76x-3.68=-55.48

-2.92x=-55.48

x=19

19+y=50

y=31

This took so much work....  I hope I helped you well.