Linear equation are the equation which has the power of the unknown variable is 1. The Emily have total 2 number of dimes coin and total 6 number of nickels coin.
<h3>
Given information-</h3>
Emily has 8 coins in her purse totaling 50 cents
The only kinds of coins she has are nickels and dimes.
<h3>Nickel</h3>
A nickel is a coin which has the value equal to the 5 cents.
<h3>Dimes</h3>
A dimes is a coin which has the value equal to the 10 cents.
Suppose the number of nickel coin is <em>x </em>and the number of dimes coin is <em>y.</em>
As total coins are 8 . Thus,
......equation 1
As the total value of the cents is 50 and nickel is equal to the 5 cents whereas the dimes is equal to the 10 cents. Thus,
Put the value of the <em>x</em> from the equation 1 in the above equation.
![\begin{aligned}5(8-y)+10y &=50\\40-5y+10y &=50\\5y &=50-40\\y&=\dfrac{10}{5} \\y&=2\end](https://tex.z-dn.net/?f=%5Cbegin%7Baligned%7D5%288-y%29%2B10y%20%26%3D50%5C%5C40-5y%2B10y%20%26%3D50%5C%5C5y%20%26%3D50-40%5C%5Cy%26%3D%5Cdfrac%7B10%7D%7B5%7D%20%5C%5Cy%26%3D2%5Cend)
Thus Emily have total 2 number of dimes coin.
Put this value of y in equation 1 we get,
![x=8-2\\x=6](https://tex.z-dn.net/?f=x%3D8-2%5C%5Cx%3D6)
Thus Emily have total 6 number of nickels coin.
Hence the Emily have total 2 number of dimes coin and total 6 number of nickels coin.
Learn more about the coin based problems here;
brainly.com/question/10482015