Solve the Problem Using Matrices

question 222

Multiple Choice

Solve the problem using matrices.
-John has a jarful of quarters and nickels. There are 109 coins in the jar. The value of the coins is $15.25. How many of each type of coin are there?

• A) 49 quarters; 60 nickels
• B) 104 quarters; 5 nickels
• C) 54 quarters ; 55 nickels
• D) 60 quarters; 49 nickels

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Definitions:

Mobiles

Portable electronic devices with connectivity capabilities, such as smartphones and tablets, used for communication and information access.

Welfare Benefits

Government-provided support to individuals or families, especially those with low incomes, in the form of financial aid or services.

Gross Private Domestic Investment

The total capital investment in an economy by private sector entities, excluding government spending.

Durable Goods

Goods not for immediate consumption that can be used over a period of time, such as appliances, cars, and furniture.