7th Math 4.2b

Last updated over 2 years ago

6 questions

7th Math 4.2b

Last updated over 2 years ago

6 questions

Math - [Lesson 4.2b]
Teacher: Mr. Kovalik (408) 314-1092
Objective and Summary:
SWBAT use double number lines and the equation Part = Percent x Whole to solve for missing percents in real-world situations

**Note: For all problems today, you can use the calculator here to multiply percents or decimals to get your final answer.

All calculations/work should still be shown.**

Party--Ethan inflated 24 balloons for a surprise birthday party. If those 24 balloons were 15% of all the balloons used in the party, how many balloons were there in total?

"In total, there were..."

CFS:
#1: Accurately creates double number line with part and whole
#2: Accurately substitutes values into the equation, Part=PercentxWhole
#3: Accurately solves the equation with inverse operations

Finance--Mr. Mancini told Mr. Kovalik that he earned $245 last year from buying stock in Basebook. His earnings were 7% of his original investment. How much money did Mr. Mancini invest in Basebook?

"Mr. Mancini invested a total of..."

CFS:
#1: Accurately creates double number line with part and whole
#2: Accurately substitutes values into the equation, Part=PercentxWhole
#3: Accurately solves the equation with inverse operations

Console Wars--Antonio wants to buy a new HexBox 5 to play video games with his brother. He saved up $99 from doing chores, and his brother told him that he has 30% of the money needed to buy the HexBox.
What is the total price of a HexBox?

"The total price of a HexBox 5 is..."

CFS:
#1: Accurately creates double number line with part and whole
#2: Accurately substitutes values into the equation, Part=PercentxWhole
#3: Accurately solves the equation with inverse operations

\pi--After a staff survey, it was revealed that 12.5% of Prize teachers say that apple pie is their favorite kind of pie. If this represents 5 teachers, how many total teachers are at the school?

CFS:
#1: Accurately creates double number line with part and whole
#2: Accurately substitutes values into the equation, Part=PercentxWhole
#3: Accurately solves the equation with inverse operations

SPICY--Try if you have time (optional)

Bright Side--This week last year, 16.5% of the population of California has received at least one dose of a covid vaccine.
If 6,519,150 people have been vaccinated, what is the total population of California?

CFS:
#1: Accurately creates double number line with part and whole
#2: Accurately substitutes values into the equation, Part=PercentxWhole
#3: Accurately solves the equation with inverse operations

Preferences--In a recent school survey, about 72% of Prize students said they liked Roblox more than Minecraft.
If there were 297 students who said they liked Roblox more, what was the total number of students asked? (Your answer will need to be rounded to the nearest whole number)

"The total number of students was..."

Bonus question if you want to stretch your thinking:
How many students liked Minecraft more than Roblox? How do you know?

CFS:
#1: Accurately creates double number line with part and whole
#2: Accurately substitutes values into the equation, Part=PercentxWhole
#3: Accurately solves the equation with inverse operations

Great job! I added more percent problems in the starred section of IXL for you to practice.