Module 4 Review

5x + y - 2²

What is the value of the expression above when x=3 and y=4

• 19

• 53

• 15

• 31

Who is correct?

• Sam:

  Sum = Addition

  Product = Multiplication

  Difference = Subtraction

  Quotient = Division

• David:

  Sum = Addition

  Product = Division

  Difference = Subtraction

  Quotient = Multiplication

• Bob:

  Sum = Subtraction

  Product = Division

  Difference = Addition

  Quotient = Multiplication

• Kevin:

  Sum = Division

  Product = Addition

  Difference = Subtraction

  Quotient = Multiplication

Find the value of the expression when x = 5

3x²

• 30

• 1,225

• 225

• 75

In the equation
x + 7 = 12
7 is being added to the variable, x. How should you show your work to isolate the variable and solve the equation? 

• Subtract 7 from both sides. The solution is x = 5.
• Add 7 to both sides.
  The solution is x = 19.
• Multiply both sides by 7 The solution is x = 84.

What number is not part of the solution set to the inequality below?
  $m-5\ge18$  

• 25

• 23

• 20

• 30

The set of numbers 1, 4, 25, and 31 contains values for b. What value of b makes the equation  below true? 
 $7b-3=25$  

• 1

• 4

• 25

• 36

Mrs. Gagnon has 4 chickens in her chicken coop. The equation 4f=27 can be used to find f, the amount of feed, in cups, that she needs to feed each chicken for a week. What equation represents the amount of feed per chicken? 

•  $f=\frac{27}{4}$  

•  $f=27\left(4\right)$  

•  $f=27-4$  

•  $f=27+4$  

Mr. Vim is tracking the weather in the 29 days of Febuary this year. He tracks each day as sunny, cloudy, or wet. If the total number of wet or cloudy days is less than 24, which inequality represents the number of sunny days there were this February?

• $s<5$

• $s>5$

• $s<53$

• $s>53$

The Ross Park Zoo charges a $7 admission fee to enter the zoo and you can buy cups of food for the animals while there. The total cost of a trip to the zoo depends on the number of food cups a person buys. The table above represents the total cost of a trip to the zoo based on cups bought.

Which equation represents the relationship between the cost, c, and the cups of food bought, f?

• $c=7.50f$

• $c=0.5f+7$

• $c=0.5+7$

• $c=7f+0.5$

Which situation is represented by the expression 2.7m?

• the amount of chocolate given to each person when a bar weighing 2.7 oz. is partitioned into m equal sections.

• the total height of a person who is 2.7 inches taller than someone who measures m inches.

• the area of a rectangle with a length of 2.7 and a width of m.

• The amount of money, m, a person has if they buy a hot cocoa for $2.70.