7th Math 4.2a

Last updated over 2 years ago

6 questions

7th Math 4.2a

Last updated over 2 years ago

6 questions

**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.**

Retakes--On the last writing assessment, about 18% of the 90 students in 6th grade asked for retakes. What number of students asked for retakes?

"_______ students asked for retakes"

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

Chips--Leilani the Taki expert said that about 7.5% of all chips in each bag of Takis are broken or crumbled. If there are 60 chips in a bag, how many would you expect to be broken?

"I would expect..."

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

Testing--Researchers in March of 2021 were studying coronavirus infection rates in LA. As of March 5th, there was a 3.2% positivity rate. If 55,000 people were tested in LA, how many people actually had a positive test result for infection?

"As of March 5th, the number of people..."

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

Bets--The stock market has been very volatile lately (this means there are many big changes in stock prices). Student McStudentson had invested $1,500 in Meta (Facebook) stock, but in the last week its value decreased by 21.2%.

How much money would he lose if he sold his stock at the new, lower price?

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

SPICY--Try if you have time (optional)

Awesome A--In all of Ms. Parnell's math classes, 14% of students got an A on the test.
This turned out to be 12 kids.

What is the total number of math students in her classes? (You may need to round)

"The total number of kids in Ms. Parnell's class..."

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

Investments--Mr. Hwung wants to invest a total of $500 in stocks. He thinks that he can earn a 14.5% return by the end of the year.

Using the earnings from his investment, would he be able to buy a $70 PS5 game?

"Mr. Hwung would... because..."

You MUST SYW on formative for credit

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