And you know right this girl has how many years of the first type of quantity of correspond to one unit of the second type of quantity
Let x be the cost of gum 20 years ago.
3x - 3 = 75
3x = 78
X = 78/3
X = 26.
So the write answer is A) 3x - 3 = 75.
Answer:
10
Step-by-step explanation:
let a = amount of apple
let g = amount of grapefruit
14a+25g=340
a+g=2a-2
-a -a
g=a-2
plug this into your first equation
14a+25(a-2)=340
14a+25a-50=340
+50 +50
39a=390
a=10
you have 10 apples
