5) Joy and Cullen put some money into their money boxes every week. The amount of money (y), in dollars, in their money boxes af

Question

3 years ago

8

5) Joy and Cullen put some money into their money boxes every week. The amount of money (y), in dollars, in their money boxes af

ter 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?

Mathematics

2 answers:

Orlov [11] · Answer 1 · 2022-05-07T11:59:04+03:00

Orlov [11]3 years ago

8 0

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

ankoles [38] · Answer 2 · 2022-05-07T14:15:30+03:00

ankoles [38]3 years ago

3 0

Answer:

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

Step-by-step explanation: