Carlos is saving money to buy a game. So far he has saved $30 , which is five-sixths of the total cost of the game. How much does the game cost?
2 Answers
Explanation:
Hmm...
Let's organize this problem.
Since he saved
Now, that is five-sixths of the total cost of the game.
Let's name the total cost
If we have a fraction of something, say, half of four, we multiply the fraction by the whole.
Similarly, five-sixths of the total can be represented as:
Now, the problem is telling us that
Therefore,
=>
=>
=>
Explanation:
Here is a little trick:
For many algebra problems,
is
of
I put parenthesis around the key words.
Really, the second sentence is what matters for us. We replace the key words with mathematical signs.
Now that looks like an equation!
The equation is:
We now solve the equation.
=>
=>
=>
=>