Ch. 5 Review
Circle the terms, put a square around the coefficients, and a triangle around the constants in this expression:
g + 12 + 9g
Circle g, 12, and 9g
Put a square around 1 in front of g and 9
Put a triangle around 12
g - 6 = 22
Solve for g. Show the steps please!
g = 28
9y = 72
y = 8
A teacher tells 36 students to form 4 equal groups. Write and solve a multiplication equation to find how many students s there should be in each group.
4s = 36
s = 9 students
If the independent variable is the "number of cars you wash," what could be the dependent variable?
the amount of money you earn
Evaluate 4b - a when a = 12 and b = 7.
16
q + 8 = 25
Solve for q. Remember to show the steps please!
q = 17
Solve the equation. Make sure to follow the steps.
4 = t/4
t = 16
Students raised $375 by having a car wash. They need $1000. Write and solve an equation you can use to find the amount x that the students still need to raise.
375 + x = 1000
x = 625
The equation C = 15p + 100 gives the total cost C in dollars of the annual banquet with p people in attendance.
What is the independent variable? What is the dependent variable?
IV: people in attendance p
DV: total cost C
Factor the expression using the GCF:
60 - 150x
30 (2 - 5x)
r – 3.2 = 1.7
Solve for r. Remember to show the steps please!
r = 4.9
Solve the equation. Make sure to show the steps.
2h/15 = 20
h = 150
The height of a desk is 11 inches shorter than the height of a chair. Write and solve an equation to find the height of the desk. The height of the desk is 41 inches.
41 - 11 = h OR h + 11 = 41
h = 30 inches
Tell whether the ordered pair is a solution of the equation:
y = 3x − 7; (4, 5)
Yes
3 x 4 = 12 - 7 = 5 :)
Use the Distributive Property to simplify the expression:
6 (6 + y)
36 + 6y
Solve for g. Remember to show the steps!
g = 5/12
Solve the equation. Make sure to show the steps.
3w/20 = 12
w = 80
Draw a rectangle that has a length of 16 cm and the area is 176 cm2. What is the width? The area formula is A = l x w.
176 = 16 x w
w = 11 cm
Graph the equation: y = 2x + 0.5
see students' graphs
Use the Distributive Property to simplify the expression:
9 (3 + c + 4)
63 + 9c
Write and solve an equation to find how many miles you must hike on Friday to hike a total of 12 miles for the five days.
Monday: 2.5; Tues: 1 3/4; Wed: 3 1/4; Thurs: 2
2.5 + 1 3/4 + 3 1/4 + 2 + f = 12
9.5 + f = 12
f (for Friday) = 2.5 mi
Solve the equation. Make sure to show the steps.
5b/2 = 27.5
b = 11
A crowd-funding project has received $7600, which is $400 more than 80% of the goal amount. What is the goal amount?
7600 - 400 = 7200/0.8 = 9000
So, $9,000
Graph the equation: y = 2x + 5
see students' graphs