Number Riddles Systems of Equations

Select the System. The sum of two numbers is 35. The difference is 10

• x + y = 35

  x - y = 10

• x + y = 10

  x - y = 35

• x * y = 35

  x - y = 10

• x / y = 35

  x - y = 10

Tags

CCSS.HSA.CED.A.3

Select the System. The sum of two numbers is 420. The difference is 90

• x + y = 420

  x - y = 90

• x + y = 90

  x - y = 420

• x * y = 420

  x - y = 90

• x / y = 40

  x - y = 90

Tags

CCSS.HSA.CED.A.3

Select the System. The sum of two numbers is 100. The second number is 5 more than the first number.

• x + y = 100

  y = 5 + x

• x + y = 100

  y = 5 x

• x + y = 100

  y = 5 - x

• x + y = 100

  y = x - 5

Tags

CCSS.HSA.CED.A.3

Select the System. The sum of two numbers is 24. The difference is 6.

• x + y = 24

  x - y = 6

• x + y = 6

  x - y = 6

• x * y = 24

  x - y = 6

• x / y = 24

  x - y = 6

Tags

CCSS.8.EE.C.8C

Two linear equations with the same set of variables

• system of equations

• function

• association

• correlation

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

Type your answer in as an integer.

Mathematical Equivalence

ON

A customer at a store paid $64 for 3 large candles and 4 small candles. At the same store, a second customer paid $4 more than the first customer for 1 large candle and 8 small candles. The price of each large candle is the same, and the price of each small candle is the same.

Which system of equations can be used to find the price in dollars of each large candle, x, and each small candle, y?

• 4y = 3x + 64

  8y = x + 68

• 4y = 3x + 64

  8y = x + 60

• 3x + 4y = 64

  x + 8y = 68

• 3x + 4y = 64

  x + 8y = 60

Tags

CCSS.HSA.CED.A.3

A customer at a store paid $64 for 3 large candles and 4 small candles. At the same store, a second customer paid $68 for 1 large candle and 8 small candles. The price of each large candle is the same, and the price of each small candle is the same. Which system of equations can be used to find the price in dollars of each large candle, x, and each small candle, y?

• 4y = 3x + 64

  8y = x + 68

• 4y = 3x + 64

  8y = x + 60

• 3x + 4y = 64

  x + 8y = 68

• 3x + 4y = 64

  x + 8y = 60

Tags

CCSS.HSA.CED.A.3

Select the System. The sum of two numbers is 85. The second number is five more than twice the first number.

• x + y = 85

  y = 2x + 5

• x + y = 85

  y = 2x - 5

• x + y = 85

  y = 2x

• x + y = 85

  y = x + 5

Tags

CCSS.HSA.CED.A.3

Select the System. The sum of two numbers is 25. The second number is 3 less than the first number.

• x + y = 25

  y = 3 + x

• x + y = 25

  y = 3 x

• x + y = 25

  y = x - 3

• x + y = 25

  y = 3 - x

Tags

CCSS.HSA.CED.A.3