Answer:
In 5 weeks they will have the same amount.
Step-by-step explanation:
1. You have that Tyronne has $60, she gets $5 each week and also gets an additional $10 each week. She saves her money. Therefore, you can write the following expression:
[tex]60+5x+10x\\60+15x[/tex]
Where [tex]x[/tex] is the number of weeks.
2. Her sister has $135, she gets $5 each week and also gets an additional $10 each week, but she spends this money. Therefore:
[tex]135+5x+10x-5x-10x\\135[/tex]
3. If this amounts of money will be equal, you have:
[tex]60+15x=135\\15x=75\\x=5[/tex]
4. Therefore, in 5 weeks they will have the same amount.
