Pre-Algebra Chapter 7 and more

Flashcards for Pre-Algebra Review

Evaluate the expression - (27-18) / 12.

-0.75

Evaluate the expression -8(-16+x) when x=0.5.

124

Write an expression to show the total cost of hiring Elijah for h hours if he babysits for more than five hours.

12h-2.50

Rewrite the following expression using the Distributive Property: 13(-16)+14(-16)

-16(13+14)

What happens to the area of the rectangle if the length is doubled?

Area of rectangle gets doubled

What linear expression would you subtract from (8p-10) to have a difference of 10?

8p-20

Write an expression to represent the total number of pearls in both collections if Chang has 3 more pearls than Cal.

2c+3

What is the length of the remaining side?

30x+50

What is the GCF of 63gh and 81ghj?

9gh

Correct Niles' mistake and correctly factor 10yz + 25xz

5z(2y+5x)

Write an expression in simplest form for the perimeter of the triangle.

17x-7

Write an expression in factored form that is equivalent to the expression 25x + 55.

5(5x+11)

Write an expression to represent the length of one side of the garden.

4x+5

Which expression is equivalent to ½(4+9)?

½(4)+ ½(9)

(15-5) is equivalent to which value?

2

Each vase contains how many pounds of clay?

4 pounds

What is the correct solution to the equation?

a=3

What value of h makes this sentence true?

h=16

The sentence, six less than the product of four and a number is less than 0.5 times the opposite of the number, translates to which mathematical statement?

4n-6<-0.5n

Which inequality can be used to find out how many gallons of gas were purchased?

4.18g≤58

Which inequality and solution shows the total weekly sales she must make to reach her goal?

(8)(15)+0.05s ≥ 200, s≥ 1600

Solve and graph the solution to the inequality: -4z+8<-27 +2

z > 33/4

Write an inequality to find the lesser integer. Then solve for the lesser integer.

n + (n+1) <= 13; n <= 6

What is the solution to the equation -6.5x = 59.8?

x=-9.2

At this rate, how many ribbons could he attach in one hour?

120 ribbons

The solution to which equation is graphed at 5 on the number line?

1.8x-4.45 = 4.55

Which equation can you use to find the total number of annual passes purchased?

43.25p=3762.75

Of the following equations, which has the correct solution?

12x-8x-5=-4; x= 1/4

What is the length of the shortest side of the triangle?

2 meters

Solve 0.5(8x-12)=-10.

x=0.5

Write an inequality to represent this situation and solve.

1250(30)x - 25000(30) >= 30000; x >= 2.27

Write an expression to show how many more miles Ling jogged than Trent.

2.8x-8

What are possible dimensions of the hot tub cover?

2(4x-1) or (8x-2)(1)

Solve -3/5x = 32

x = -160/3

Solve 4/5(x+8)-6 = 10

x = 12

Solve 5.7h=3.2h-8

h = -3.2

Solve 3x-16=3x-14

No Solution

If x=-16, what is the value of -2x-15?

17

Write and solve an equation to find the approximate area of Lake Michigan.

M = (1/5)*150000 - 9420; M = 20580

Write and solve an equation to find the number of each type of DVD Santosh purchased.

120 + 15x + 5x = 200; x = 4

What are the integers if four times the sum of three consecutive integers is 180?

14, 15, 16

What is the length of the longest side of the triangle if the side lengths, in centimeters, of a triangle are 3x, 15, and 4(x-1) and the perimeter of the triangle is 60 centimeters?

28cm

Write an inequality to represent the statement: Shaun's earnings at $12 per hour were less than $150.

12h < 150

Is the inequality true or false when g = 6? Explain.

False, -2.8(6) - 2 < -18 simplifies to -18.8 < -18, which is true

Solve 3 < 2-2b.

b < -0.5

Which expression has the same value as 4(-5+x)?

(4-5) + (4x)

Which of the following expressions can be written as ½(x + y)?

½ xy + yx

Which expression can be used to mentally compute the total cost of admission tickets for 60 students?

60(10+2)

Which expression has a coefficient of 0.5?

4+0.5x

Which of the following expressions correctly combines like terms?

2x + 7y+2x-4y=4x+3y

Which expression represents the total number of coins in both collections?

2c+8

What is the constant in the expression?

15

Which expression represents the perimeter of the triangle?

(11x-4) units

What are the angle measures of the triangle?

45°, 60°, 75°

What is the GCF of 100xyz and 25xz?

25xz