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38 votes
38 votes
Hi! I need a bit of help to understand this please.

Hi! I need a bit of help to understand this please.-example-1
Hi! I need a bit of help to understand this please.-example-1
Hi! I need a bit of help to understand this please.-example-2
User Marc Litchfield
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2.6k points

1 Answer

13 votes
13 votes

Given the following question:


\begin{gathered} S=450+30w \\ S\text{ representing the total amount of money} \\ w\text{ representing weks each wek she adds 30} \\ 450\text{ representing the orginal amount she added but since it's first it goes before 30} \end{gathered}

Now for part two:

Find the amount of money after 17 weeks


\begin{gathered} S=450+30w \\ w=17 \\ S=450+30(17) \\ 30*17=510 \\ S=450+510 \\ 450+510=960 \\ S=960 \end{gathered}

After 17 weeks she will have 960 dollars.

User Kalithlev
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