Answer:
The Time taken by Chris to save that much amount will be 9 weeks and 4 days
Step-by-step explanation:
Given as :
The present amount that Chris have = $165
The cost of Xbox = $500 + 10% sales tax
So, Total cost of Xbox = $500 + 10% of $500
Or, Total cost of Xbox = $500 + $50 = $550
Now Amount which Chris need more to buy = $550 - $165 = $ 385
As He earn $40 in a week
Let the time taken for him to save money = x
∵ To earn amount of $40 he work for 1 week
∴ To earn amount of $385 he have to wok for [tex]\frac{1}{40}[/tex] × 385 week
or, To earn amount of $385 he have to wok for = [tex]\frac{385}{40}[/tex] = 9.625 weeks = 9 weeks + 4 days
Hence, To earn amount of $385 he have to wok for 9 weeks and 4 days Answer
