Solve Using a System of Two Equations in Two Unknowns

question 29

Multiple Choice

Solve using a system of two equations in two unknowns.
-Aviva has 67 dimes and nickels. The total value of the coins is $5.55. Find the number of each type of coin.

• A) 44 nickels and 23 dimes
• B) 23 nickels and 44 dimes
• C) 25 nickels and 42 dimes
• D) 28 nickels and 39 dimes

---

Definitions:

Second Worker

The term "second worker" can refer to an additional employee hired to perform tasks, often implying the expansion of workforce due to increased workload.

Law of Diminishing Marginal Returns

A principle stating that adding an additional factor of production results in smaller increases in output after a certain point, holding other inputs constant.

Variable Input

An input used in production that can be adjusted in the short term, such as labor or raw materials.

Short Run

A period in which at least one input or resource is fixed, limiting the capacity to adjust all factors of production.