Explanation
Mackenzie has 1 dollar, 2 dimes, and 3 pennies.
Recall
[tex]\begin{gathered} 1\text{ dime =0.1 dollar} \\ 1\text{ penny =0.01 dollar} \end{gathered}[/tex]Therefore, the total sum that Mackenzie has becomes;
[tex]1+2(0.1)+3(0.01)=1+0.2+0.03=1.23[/tex]Let d represent dimes and p represent pennies. Therefore, the total dimes and pennies Jorge could have becomes
[tex]0.1d+0.01p[/tex]Since both individuals have the same amount of money
[tex]0.1d+0.01p=1.23[/tex]Hence the equation is model as;
ANSWER:
[tex]0.1d+0.01p=1.23[/tex]