You have a piggy bank a total of 72 coins in dime and quarters . If the piggy bank contains 10.80 how many dime are in the piggy
1 answer:
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Answer:
Both and
are solutions to the system.
Step-by-step explanation:
In order to determine whether the two given points represent solutions to our system of equations, we must "plug" thos points into both equations and check that the equality remains valid.
Step 1: Plug into
The solution verifies the equation.
Step 2: Plug into
The solution verifies both equations. Therefore, is a solution to this system.
Now we must check if the second point is also valid.
Step 3: Plug into
Step 4: Plug into
The solution verifies both equations. Therefore, is another solution to this system.