Unit 1-Linear Expressions Pre Assessment

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

• x = 1

• 2x = 4

• x = 2

• x = 3/2

Given the following equations, determine if each has ONE, NONE, or MANY Solutions. Choose the correct answer set.

A. 4(2x+1) = 4 + 8x

B. 4x + 7 - 5 = 8 - x

C. 5x + 1.2 = 4x + 4.7

• A. Many

  B. None

  C. One

• A. None

  B. Many

  C. One

• A. One

  B. None

  C. Many

• A. Many

  B. One

  C. None

Given C=klw, solve for k.

• C=klw

• k=Clw

• Ck=lw

• C/lw=k

Solve fo t in the velocity equation v = d/t.

• t=dv

• t=dvt

• t=d/v

• t=v/d

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?

• x = 5

• x < 5

• x = 6

• x > 5

Fishing Adventures rents small fishing boats to tourists for day-long fishing trips. Each boat can hod at most eight people. Additionally, each boat can only carry 900 pounds of weight for safety reasons. Let p represent the number of people. Write an inequality to describe the number of people that a boat can hold. Choose the answer that shows all possible solutions.

• {0, 1, 2, 3, 4, 5, 6, 7}

• {1, 2, 3, 4, 5, 6, 7, 8}

• {0, 1, 2, 3, 4, 5, 6, 7, 8}

• {2, 4, 6, 8}

Fishing Adventures rents small fishing boats to tourists for day-long fishing trips. Each boat can hod at most eight people. Additionally, each boat can only carry 900 pounds of weight for safety reasons. Let w represent the total weight of a group of people wishing to rent a boat. Write an inequality that describes all total weights allowed in a boat. Choose the answer that shows all possible solutions.

• {100, 200, 300, 400, 500, 600, 700, 800, 900}

• {0, 100, 200, 300, 400, 500, 600, 700, 800, 900}

• {0, 900}

• {0, 100 , 200, 300, 400, 500, 600, 700, 800}