Grade 8 IABs Target D

The value for x that makes the equation 4x - 2 + 3x - 7 = -51 true is _____ .

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Tags

CCSS.8.EE.C.7

Enter the value for x that makes the equation 5 + 3x - 37 = 6x + 23 - 8x true. The value of x is _____ .

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Tags

CCSS.8.EE.C.7

Select the statement that correctly describes the solution to this system of equations.

4x + y = 8

2x - 3y = 4

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• There is no solution.

• There are infinitely many solutions.

• There is exactly one solution at (2, 0).

• There is exactly one solution at (0, 2).

Tags

CCSS.8.EE.C.8

Jenny is solving the linear equation 12 + 3x - 5 = 8x + 8 - 5x. Her final two steps are:

7 + 3x = 3x + 8

7 = 8

Select the statement that correctly interprets Jenny’s solution.

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• The solution is x = 0.

• The solution is the ordered pair (7, 8).

• There is no solution since 7 = 8 is a false statement.

• There are infinitely many solutions since 7 = 8 is a false statement.

Tags

CCSS.8.EE.C.7

Select the statement that correctly describes the solution to this system of equations.

5x + 10y = 5

4x + 8y = 5.

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• There is no solution.

• There are infinitely many solutions.

• There is exactly one solution at (5, 5).

• There is exactly one solution at (1, 0).

Tags

CCSS.8.EE.C.8

Select the statement that correctly describes the solution to this system of equations.

x + 2y = 5

y = 3x - 8

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• There is no solution.

• There are infinitely many solutions.

• There is exactly one solution at (5, -8).

• There is exactly one solution at (3, 1).

Tags

CCSS.8.EE.C.8

Enter a value for x that makes the equation 7x - 2(x + 1) + 18 = 8x - 11 true.

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Tags

CCSS.8.EE.C.7

Enter the x coordinate of the solution to this system of equations.

-2x + y = 5

-5x + y = -4

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Tags

CCSS.8.EE.C.8

In an experiment, the temperature of a liquid at 16.9 degrees Celsius is decreasing at a rate of 2.3 degrees Celsius per minute and the temperature of a solid at 30.7 degrees Celsius is decreasing at a rate of 6.9 degrees Celsius per minute.

Enter the number of minutes it will take the liquid and solid to reach the same temperature.

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Tags

CCSS.8.EE.C.7

What is the definition of 'degrees'?

• degrees : a unit for measuring temperature.

• degrees : a measure of angles.

• degrees : a level of academic achievement.

• degrees : a unit for measuring distance.

Tags

CCSS.8.G.A.5