Substitution
Which value can you substitute for d to equal 35?
23, 26, 30, 32
d+9=35
d=26
t-40=3
Solve for t.
t=43
3x=45
Solve for x. Explain the process.
Circle your x. Draw a line under the = sign. Divide by 3 on both sides.
x=15
7/10= x-3/10
x=1
Write an inequality to represent each situation
Mrs. Johnson is taller than 60 inches.
Iker is not 4 years old.
Spongebob has at least $7.50
a>60
d≠4
b≥7.50
Substitute the correct value for n.
14, 15, 18, 30
n=54-36
n=18
Peyton added 26 new contacts to her phone list. She now has 100 contacts. Let c represent how many contacts Peyton had on her phone list before she updated it. Write an equation and solve for c.
c+26=100
c=74
t/15=4
Solve for t. Explain the process
9=3/8y
Solve for y
y=24
Explain what the inequality is saying in words
p<40
x≥30
r≠20
p is less than 40
x is at least 30
r is not 20
Which is the correct subtitute for the m value?
7, 9, 12, 15
36/m=4
m=9
55/x=11
Solve for x.
x=5
Solve for s. Explain the process.
Circle your s. Draw a line under = sign. Divide by 800 on each side. s=9
Substitute each given value of the variable to find which, if any, is a solution of the inequality
w<8
w=4.3, 5.3, 8.3, 9
w= 4.3 and 5.3
Liam is baking a pie. The recipe calls for 12 bags of sugar, and he already has 2 bags at home.
Karson tells him that he needs to buy 10 bags, Landon tells him he needs to buy 12 bags, and Amanda tells him that he needs to buy 11 bags.
Who is correct? Write an equation, and substitute for x value.
Karson is right.
Equation is x+2=12
x=10
Select all the equations that have the same solution as 36=x+32
a. 42=38+x
b. x+15=19
c. 18=x-2
d. 52-x=46
a, b
In 12 weeks, Bryant earns 4500 doing yard work. He earns the same amount each week. Let m stand for the amount earned each week. How much does Bryant make each week?
4500/12=m
m=375 dollars earned each week
Which value for y makes the equation 0.26y=0.676 true?
a) y=0.17576
b) y=0.26
c) y=2.6
d) y=26
C
y=2.6
Graph the following inequalities:
h<9
s>6
r≥10
Check around room.
Mrs. Johnson shot 30 baskets. Addison shot 15 baskets. Their total baskets shot each day was equal. The total number of baskets they shot was divisible by 3. If their total baskets could be divided by 3, how many baskets did they shoot over 3 days?
15 baskets
30+15=45 45/3=15
Mrs. Ginger is throwing a class party. She needs to buy 10 bags of chips, 2 cartons of juice and x bags of popcorn.
She already has 2 bags of chips, and 1 carton of juice at home.
Find the total number of chips, juice and popcorn, she still needs to buy. There should be 30 items total. Then, write and solve an equation to find the number of bags of popcorn that Mrs. Ginger is buying.
Still needs to buy 8 bags of chips, 1 carton of juice.
10+2+x=30
12+x=30
x=18 bags of popcorn.
Mrs. Johnson's Resource class played 4,920 rounds of Fortnite in January. They played 40 rounds each day.
Which of the following equations can be used to find out how many rounds of Fortnite, f, Mrs. Johnson's' Resource class played in January?
a. 4920f=40
b. f/40= 4920
c. 40f=4920
d. f/4920=40
c
Solve for x
1/3x=2
x=6
Matthew is doing a reading challenge. He is supposed to read 10 books every month for the year of 2025. He has already read 1 book this year.
How would you write that as an equation?
equation: y=10x+1