Let the cost of one pound of candy be x and one pound of mint be y.
3x+2y=10.8 a
x+3y = 5.35 b
B*3 = 3x+9y = 16.05 b
b-a = 7y = 16.05-10.8= 5.25
y = 5.25/7 = 0.75
The cost per pound of mints is $0.75
Answer:
Original number = 38
Step-by-step explanation:
10*x + y
x = y - 5
10y + x = 2 (10x + y) + 7
10y + y - 5 = 2(10(y - 5) + y) + 7
11y - 5 = 2(10y - 50 + y ) + 7
11y - 5 = 2(11y - 50) + 7
11y - 5 = 22y - 100 + 7
11y - 5 = 22y - 93
11y + 88 = 22y
88 = 11y
y = 8
x = y - 5
x = 8 - 5
x = 3
So the original number is 38. Does that work?
3 is 5 less than 8.
83 = 2*38 + 7
83 = 76 + 7
83 = 83. Yes it works.
Answer:
X=14
Y=11
Step-by-step explanation:
14-11=3
14x2=28
11x2=22
22+28=50
Hope that works :)
