robert spent 30% of his money on a phone if the phone cost 84 then how much did he have in the first place?

To find out how much money Robert had in the first place, we can set up the following equation:

Let $ x $ represent the total amount of money Robert originally had.

Given that Robert spent 30% of his money on a phone, and the phone cost $ 84 $ dollars, we can write:

\[
0.30x = 84
\]

Now, solve for $ x $ by dividing both sides of the equation by 0.30:

\[
x = \frac{84}{0.30} = 280
\]

So, Robert had $280 in the first place.

Would you like more details or have any questions?

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Here are some related questions you might be interested in:

1. If Robert spent 40% of his remaining money after buying the phone on a pair of shoes, how much did the shoes cost?
2. What would be the total percentage of Robert's money spent if he also bought an item costing $56 after purchasing the phone?
3. If Robert had $500 initially, what percentage of his money would the phone represent?
4. How much would Robert have left if he spent another 10% of his remaining money after buying the phone?
5. If the phone was on a 20% discount, what was its original price?
6. What would be the equivalent fraction of the 30% of Robert's money spent on the phone?
7. How much money would Robert have if he initially had $350 and spent 30% on the phone?
8. If Robert had $280 after buying the phone, what was his initial amount?

**Tip:** To find the original amount when a percentage is given, divide the known value by the percentage (expressed as a decimal).

Find out how much money Robert originally had by solving a percentage problem involving money. Learn the step-by-step solution method and related questions. Suitable for Grades 6-8.

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