Question

At a university, Todd deposits $100 into his cafeteria account. He spends $5 on dinner every day. Seth deposits $140 into his account. He spends $5 on lunch and $5 on dinner every day. After how many days will Todd and Seth have the same amount of money in their accounts? A:16B:8C:4D:2

Answer 1

Todd deposit = $100

amount spent on dinner every day = $5

Seth deposit = $140

He spent total of $5 + $5 = $10 everyday

Let

the number of days = x

`\begin{gathered} 100-5x=140-10x \\ 100-140=-10x+5x \\ -40=-5x \\ x=(-40)/(-5) \\ x=8 \end{gathered}`

B. 8