Question

As part of a charity drive, 50 fourth grade students each donated an equal number of dimes and 30 third grade students each donated the same number of nickels. Let d represent the number of dimes and n represent the number of nickels. Determine which of the expressions shows the total amount (in cents) donated by the 3rd and 4th grade students. A.) 10(50d)+5(30n)B.) 80cC.) 10d+5nD.) 50d+30n

Answer 1

`\begin{gathered} By\text{ fourth grade is }\Rightarrow50d \\ By\text{ third grade is}\Rightarrow30n \\ So,\text{ the expression is,} \\ 50d+30n \\ \text{Thus, the option D is correct.} \end{gathered}`