Question

5) Joy and Cullen put some money into their money boxes every week. The amount of money (y), in dollars, in their money boxes after a certain amount of time (x), in weeks, is shown by the equations below: Joy: y = 30x + 20 Cullen: y = 20x + 90
a) After how many weeks will Joy and Cullen have the same amount of money in their money boxes?
b) What is that amount?

Answer 1

Week 7 And the amount is 230$
You can check it by getting a Graphing Calculator and Inserting the Equations into y= And Go down the list where x=7 and the two variables are the same Number

Answer 2

Answer:

The answer is D trust me i helped my friend Week 7 And the amount is 230$

Step-by-step explanation: