Every day Joseph's mom goes to the store and buys apples and oranges. Yesterday she bought 3 apples and 4 oranges for $\$20$. Then today she returned home with 4 apples and 5 oranges for $\$26.$ Assuming the price doesn't change, how much do apples and oranges cost? $Apples \, cost \, \$4, \, \\ \, and \, oranges \, cost \, \$2.$

$\$4 \, per \, Apple, \, \\ \, \$2 \, per \, Orange$

$\$2 \, per \, Apple, \, \\ \, \$5 \, per \, Orange$

$\$3 \, per \, Apple, \, \\ \, \$4 \, per \, Orange$

$\$5 \, per \, Apple, \, \\ \, \$3 \, per \, Orange$

$\$4 \, per \, Apple, \, \\ \, \$2 \, per \, Orange$

Gabriel pays for a total of 26 kilowatts of power for a month of running 4 televisions and 5 refrigerators. The next month he uses a total of 26 kilowatts for 5 televisions and 3 refrigerators. How many kilowatts a month do televisions and refrigerators use? Write a system of equations to describe the situation below, solve using elimination. $Televisions \, use \, 4 \, kilowatts, \, \\ \, while \, refrigerators \, use \, 2 \, kilowatts.$

$Televisions \, 4 \, kW,\\ \, Refrigerators \, 2 \, kW.$

$Televisions \, 7 \, kW, \, \\ \, Refrigerators \, 3 \, kW.$

$Televisions \, 4 \, kW,\\ \, Refrigerators \, 2 \, kW.$

$Televisions \, 2 \, kW, \, \\ \, Refrigerators \, 4 \, kW.$

$Televisions \, 6 \, kW,\\ \, Refrigerators \, 5 \, kW.$

$Morning \, average: \, 5 \, \\ \, Evening \, average: \, 2$

$Morning \, average: \, 4 \, \\ \, Evening \, average: \, 4$

$Morning \, average: \, 5 \, \\ \, Evening \, average: \, 2$

$Morning \, average: \, 6 \, \\ \, Evening \, average: \, 5$

$Morning \, average: \, 8 \, \\ \, Evening \, average: \, 3$

Algebra

Grade 8 - Mathematical Process Standards

Standard 8.MPS.111.28.b.1A - Practice solving a system of equations with word problems using the elimination method.

Included Skills: Algebra

Apply mathematics to problems arising in everyday life, society, and the workplace.