SOLUTION: 1.A system of linear equations is solved by substitution and results in the equation 0 = 0. This means that the equation has NO solution. TRUE OR FALSE 2.A set of twenty-five

Question 1000030: 1.A system of linear equations is solved by substitution and results in the equation 0 = 0. This means that the equation has NO solution.
TRUE OR FALSE

2.A set of twenty-five coins, whose value is P113, consists of 1-peso coins, 5-peso coins and 10-peso coins. If the 1-peso coins were 5-peso coins, the 5-peso coins were 10-peso coins,and the 10-peso coins were 1-peso coins, the total value is also P113. How many 1-peso coins are in the set?
Answer by ikleyn(52864) (Show Source): You can put this solution on YOUR website!

1. The answer is FALSE.


2. Let x = the number of 1-peso coins, 
       y = the number of 5-peso coins, and
       z = the number of 10-peso coins.

Then you have the system of 3 equations with 3 unknowns

 x +    y +   z = 25
 x +   5y + 10z = 113,
5x +  10y +   z = 113.

Could you solve this system yourself?

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Comment from student: X=13,Y=4 AND Z=8 DID I GET IT RIGHT :) ?
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Response: Absolutely right. Good job!

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