7th Math 4.10
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Last updated over 2 years ago
7 questions
IP
1
Credit--Mr. Hwung got his first credit card in high school. He bought A LOT of food and video games and ended up with a $950 balance. If he forgot to pay off his credit card for 3 months, how much interest would he owe if he is charged 26% per month?
"Mr. Hwung would owe..."
CFS:#1: Accurately identifies principal (P), rate (r), and time (t)#2: Accurately converts units of time when necessary#3: Calculates interest with the formula, I=Prt
Credit--Mr. Hwung got his first credit card in high school. He bought A LOT of food and video games and ended up with a $950 balance. If he forgot to pay off his credit card for 3 months, how much interest would he owe if he is charged 26% per month?
"Mr. Hwung would owe..."
CFS:
#1: Accurately identifies principal (P), rate (r), and time (t)
#2: Accurately converts units of time when necessary
#3: Calculates interest with the formula, I=Prt
1
Sneaks--Alberto lent Bryan $300 to buy the newest sneakers, the Air Mancinis AP Edition. Alberto will charge Bryan a 5% monthly interest rate. How much interest would Bryan owe if he pays back Alberto after six months?
"Bryan would owe..."
CFS:#1: Accurately identifies principal (P), rate (r), and time (t)#2: Accurately converts units of time when necessary#3: Calculates interest with the formula, I=Prt
Sneaks--Alberto lent Bryan $300 to buy the newest sneakers, the Air Mancinis AP Edition. Alberto will charge Bryan a 5% monthly interest rate.
How much interest would Bryan owe if he pays back Alberto after six months?
"Bryan would owe..."
CFS:
#1: Accurately identifies principal (P), rate (r), and time (t)
#2: Accurately converts units of time when necessary
#3: Calculates interest with the formula, I=Prt
1
Returns--You invest $1500 into the company Mancini Mart. The company promises to pay you 6.25% annually on a 2 year investment.
How much interest would you earn after the 2 years?
"I would earn..."
CFS:#1: Accurately identifies principal (P), rate (r), and time (t)#2: Accurately converts units of time when necessary#3: Calculates interest with the formula, I=Prt
Returns--You invest $1500 into the company Mancini Mart. The company promises to pay you 6.25% annually on a 2 year investment.
How much interest would you earn after the 2 years?
"I would earn..."
CFS:
#1: Accurately identifies principal (P), rate (r), and time (t)
#2: Accurately converts units of time when necessary
#3: Calculates interest with the formula, I=Prt
1
Business--You decide to start your own business. At the bank, you decide to borrow $25,000 at an annual interest rate of 8% for 36 months. At the end of the 36 months, what is the total amount of money you have to pay back (including all interest).
CFS:#1: Accurately identifies principal (P), rate (r), and time (t)#2: Accurately converts units of time when necessary#3: Calculates interest with the formula, I=Prt
Business--You decide to start your own business. At the bank, you decide to borrow $25,000 at an annual interest rate of 8% for 36 months.
At the end of the 36 months, what is the total amount of money you have to pay back (including all interest).
CFS:
#1: Accurately identifies principal (P), rate (r), and time (t)
#2: Accurately converts units of time when necessary
#3: Calculates interest with the formula, I=Prt
1
Debt--Mr. Hwung forgot to pay his credit card bill of $2,120. The credit card company then charged him interest of 26.98% on the balance the next month. How much extra money does Mr. Hwung have to pay back?
CFS:#1: Accurately identifies principal (P), rate (r), and time (t)#2: Accurately converts units of time when necessary#3: Calculates interest with the formula, I=Prt
Debt--Mr. Hwung forgot to pay his credit card bill of $2,120. The credit card company then charged him interest of 26.98% on the balance the next month. How much extra money does Mr. Hwung have to pay back?
CFS:
#1: Accurately identifies principal (P), rate (r), and time (t)
#2: Accurately converts units of time when necessary
#3: Calculates interest with the formula, I=Prt
1
SPICY--Try if you have time (optional)
Loan--Your friend wants you to loan them money to start a new business, Pants Palace. If you lend them $500, they will pay you 0.75% interest per month for 5 years.
After the 5 years, how much interest will they pay you? (HINT: your units of time must match)
CFS:#1: Accurately identifies principal (P), rate (r), and time (t)#2: Accurately converts units of time when necessary#3: Calculates interest with the formula, I=Prt
SPICY--Try if you have time (optional)
Loan--Your friend wants you to loan them money to start a new business, Pants Palace. If you lend them $500, they will pay you 0.75% interest per month for 5 years.
After the 5 years, how much interest will they pay you?
(HINT: your units of time must match)
CFS:
#1: Accurately identifies principal (P), rate (r), and time (t)
#2: Accurately converts units of time when necessary
#3: Calculates interest with the formula, I=Prt
ET
4
Nest Egg--Mr. Vasquez invests $2,000 in a savings plan that pays an annual interest rate of 5.75%. He calculates that he will earn $10,350 in interest by the end of 9 years.
Do you agree or disagree with Mr. Vasquez? Explain why and use math evidence.
"I (agree / disagree) with Mr. Vasquez because..."
CFS:#1: Accurately identifies principal (P), rate (r), and time (t)#2: Accurately converts units of time when necessary#3: Calculates interest with the formula, I=Prt
Nest Egg--Mr. Vasquez invests $2,000 in a savings plan that pays an annual interest rate of 5.75%.
He calculates that he will earn $10,350 in interest by the end of 9 years.
Do you agree or disagree with Mr. Vasquez? Explain why and use math evidence.
"I (agree / disagree) with Mr. Vasquez because..."
CFS:
#1: Accurately identifies principal (P), rate (r), and time (t)
#2: Accurately converts units of time when necessary
#3: Calculates interest with the formula, I=Prt