ENH - 1st Nine Weeks Review

What is the solution to the equation 3x + 1 = x + 5?

• x = 1

• x = 2

• x = 3

• x = 4

What is the solution to the equation -5x + 17 = 3x - 7?

• x = 5

• x = 12

• x = 3

• x = 1.2

Sort each equation by the number of solutions it has.

• -2x + 5 = -2x + 5

• No Solution

• -24 + 20x = 24 + 8x

• One Solution

• 7x - 3 = 7x + 5

• Infinitely Many Solutions

Tags

CCSS.8.EE.C.8B

• Distribute the 5.

• Combine the 2x and 3.

• Combine the x and 6.

• Subtract 2x on both sides.

Tags

CCSS.8.EE.C.7B

• Associative Property of Addition

• Addition Property of Equality

• Subtraction Property of Equality

• Commutative Property of addition

Tags

CCSS.7.EE.B.4A

Solve for R.

V = IR

• R = IV

• R = I/V

• R = V/I

• R = V - I

Tags

CCSS.HSA.CED.A.4

The cost, in dollars, of a single-story home can be approximated using the formula C = klw, where l is the approximate length of the home and w is the approximate width of the home. Solve the equation for k.

Tags

CCSS.HSA.CED.A.4

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Tags

CCSS.7.EE.B.4B

TJ is offered a job with a salary of $42,000 and a raise of $6,000 per year. Another company offers him $62,000 and a raise of $2,000 per year. After how many years will TJ make more money if he accepts the first offer?

Nalia has saved up $12 to spend at the fair on games and rides. Games cost $2 each and rides cost $3 each. Create an inequality to represent this scenario.