James has 33 coins in his pocket, all of them nickels and quarters. If he has a total of $3.25, how many quarters does he have?
oooh, money problems! Not the most fun thing to do...but doable, nonetheless!
First relate the numbers of coins in one equation, then relate the value of them in another. You will have a system of equatios then that you can solve simultaneously.
if he has only nickels add quarters and the number of them totals 33 coins, let n be nickels and q be quarters and n + q = 33
That's the first equation. Secondly, we know that a nickel is worth 5 cents and a quarter is worth 25 cents. He has a total of $3.25. So that will be our second equation...relating the value of the nickels and quarters to the total amount of money he has. .05n + .25q = 3.25
Now you have a system of equations that looks like this: n + q = 33 .05n + .25q = 3.25
Do you know what to do with a system of equations to solve it for either one of the variables?
multipy? I have no idea :p
12 quarters was my mistake its actually 13 quarters all together...
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