1. Unit 6. Day 5.

2. Example A: Zoey inflated 24 balloons for decorations at the middle school dance. If Zoey inflated 15% of the total number of balloons inflated for the dance, how many balloons are there total?
15%
24 is 15% of what number?
15 100 =
0.15 ∙ 𝑥
15 100 24 24
inflated
inflated = 𝑥
total
total
24=0.15𝑥
0.15
0.15
15 𝑥
15𝑥
2400 = 15 15
160 = 𝑥
= 480 3 𝑥 = =
160
160

3. Example B: Haley is making admission tickets to the middle school dance. So far she has made 112 tickets, and her plan is to make 320 tickets. What percent of the admission tickets has Haley produced so far?
what percent
What percent of 320 is 112?
100 𝑥
112
made
made =
0.01𝑥 ∙
320 =
112
320
total
total
𝑥 320
320𝑥 =
11200
320
320
140 4 𝑥 = 35 = = 35
𝑥 = 35

4. Example C: In Ty’s math class, 20% of students earned an A on a test
Example C: In Ty’s math class, 20% of students earned an A on a test. If there were 30 students in the class, how many got an A?
20%
What is 20% of 30? 𝑥 A
20 100 A 𝑥= = 30
total
total
𝑥=6
100 𝑥
100𝑥 =
20 30
600
100
100 𝑥 = 6

5. Example D: 40% of the students on the field trip love the museum
Example D: 40% of the students on the field trip love the museum. If there are 20 students on the field trip, how many love the museum?
Example E: 40% of the students on the field trip love the museum. If 20 students love the museum, how many are on the field trip?
Example F: 20 students on the field trip love the museum. If there are 40 students on the field trip, what percent love the museum?

6. Example D: 40% of the students on the field trip love the museum
Example D: 40% of the students on the field trip love the museum. If there are 20 students on the field trip, how many love the museum?
40%
What is 40% of 20? 𝑥
love
40 100
love 𝑥= = 20
total
total
𝑥=8
100 𝑥
100𝑥 =
40 20
800
100
100 𝑥 = 8

7. Example E: 40% of the students on the field trip love the museum
Example E: 40% of the students on the field trip love the museum. If 20 students love the museum, how many are on the field trip?
40%
20 is 40% of what number?
40 100 =
0.40 ∙ 𝑥
40 100 20 20
love
love = 𝑥
total
total
20=0.40𝑥
0.40
0.40
40 𝑥
40𝑥 =
2000 40 40 50 = 𝑥
= 200 4 𝑥 = = 50 50

8. Example F: 20 students on the field trip love the museum
Example F: 20 students on the field trip love the museum. If there are 40 students on the field trip, what percent love the museum?
what percent
What percent of 40 is 20?
100 𝑥 20
love
love =
0.01𝑥 ∙ 40 = 20 40
total
total
𝑥 40
40𝑥 =
2000 40 40
200 4 𝑥 = = 50 50 =
𝑥 = 50