PLEASE HELP ASAP! Directions: Define one variable (you may NOT use two), translate into ONE equation

and solve the equation to answer the question. If the scenario has two

unknowns, define the second unknown in-terms of the defined variable.

You may use a calculator.

You are investing your money in two types of stock, CI and AM.

You have $1400 to invest over 5 years. After 5 years, the AM stock

doubles and the CI stock triples in value making your stock worth

$3300, how much did you invest in each type of stock?

AM = 900

CI = 500

I have to be honest, this is the most ridiculously worded question of this type that I have ever seen... ask you teacher, why it was so important to force you to solve it using only one variable?

Step-by-step explanation:

(AM) + (1400-AM) = 1400

2(AM) + 3(1400 - AM) = 3300

2AM + 4200 -3AM = 3300

-AM = -900

AM = 900

CI = 500

1: proportional

2: non-proportional

3: non-proportional

4: non-proportional

5: proportional

6: proportional

7: non-proportional

8: proportional

9. proportional.

10. proportional.

11. non-proportional.

12. proportional.

Step-by-step explanation:

I'm unsure how the proportional ones are actually calculated depending if it requires a dot on the exact origin, but depending on what I can graphically view and assume; every graph with the line running through the origin is proportional and every graph where the line does not run through the origin is non-proportional.