Vocabulary
A(n) ________ is a mathematical sentence that compares quantities that may or may not be equal.
Inequality
What is the solution of the equation y - 3 = -12
y = -9
Edgar can buy 15 picture frames for $390. What is the cost of each picture frame?
$26
Write an inequality that represents the number of questions (r) you can get incorrect on the test is at most 4.
r < or equal to 4
The owners of Origins Pizza are giving away one slice of pizza to each customer. The owners budgeted $364 to spend on pizzas for the event, and each pizza costs $4. The inequality 364>4p, where 4 is the number of pizza slices, represents the situation. How many customers can possibly get a slice of pizza? Select all that apply. 91,89,92,93,90
89 and 90
Using_____ is a method to solve an equation by undoing the operation.
Inverse Operations
What is the solution of the equation 1785 = x - 414
x = 2199
The city of Sarasota collects 5 times as many tones of plastic as tons of glass in their recycling program. The city collects 90 tons of glass in June. How much plastic did the city collect in June?
450 tons
A(n) ____ is a mathematical sentence that compares quantities that may or may not be equal.
Inequality
Indicate whether 20, 21,23, 24, is a solution of the inequality x/2 > 11
20 no
21 no
23 yes
24 yes
Which term desciribes the process of replacing a variable in an equation with a value that results in a true sentence?
A. Inverse Operations
B. Equals sign
C. solve
D. Multiplication Property of Equality
What is the solution of the equation 3/8d=5/24?
x = 5/9
Reese made $179 from a fundraiser on Sunday. This is $57 less than Saturday's sales. Write an equation that could be used to find Saturday's sales, s.
s - 57 = 179
open circle shaded to the right
Question 16 on page 422
open circle shaded to the left
A(n) _____ is a symbol used to show that two expressions are equal.
equal sign
What is the solution of the equation y/-11=28
y = 308
After a garage sale, the arts foundation has $2,987. The foundation began with $899 before the garage sale. Which equation could be used to find the amount raised at the garage sale, d? Select all that apply.
a. 2,987 - d = 899
b. d- 2,987 = 899
c. d - 899 = 2,987
d. 899 - d = 2,987
e. 2,987 - 899 =d
a and e
question 19 on page 423
p is less than or equal to 50
p is greater than 50
A(n) ______ of an equation or inequality is a value that makes the equation or inequality true.
Solution
What is the solution of the equation 625 = x + 219
x = 406
Is -48, -44, 44 or 48 the solution of the equation 11 = y/-4 +y/2?
44
Question 23 on page 423
13 and 12
Question 22 on page 423
11 no
12 yes
13 yes