7.rp.3b day 4 first day objective: i can find simple interest
TRANSCRIPT
![Page 1: 7.RP.3b Day 4 first day Objective: I can find simple interest](https://reader030.vdocuments.site/reader030/viewer/2022020717/551b09ee5503462e578b5719/html5/thumbnails/1.jpg)
7.RP.3bDay 4 first day
• Objective: I can find simple interest.
![Page 2: 7.RP.3b Day 4 first day Objective: I can find simple interest](https://reader030.vdocuments.site/reader030/viewer/2022020717/551b09ee5503462e578b5719/html5/thumbnails/2.jpg)
Journal
• Sarah estimated she would need 5 pillows but she actually used 8. What is her percent error?
![Page 3: 7.RP.3b Day 4 first day Objective: I can find simple interest](https://reader030.vdocuments.site/reader030/viewer/2022020717/551b09ee5503462e578b5719/html5/thumbnails/3.jpg)
Review
• Ted guessed he would spend $63 at the store but actually spent $89. What was his percent error?
![Page 4: 7.RP.3b Day 4 first day Objective: I can find simple interest](https://reader030.vdocuments.site/reader030/viewer/2022020717/551b09ee5503462e578b5719/html5/thumbnails/4.jpg)
Quiz
Angelina estimated she would buy $56 worth of groceries but she actually spent $45. What was her percent error?
![Page 5: 7.RP.3b Day 4 first day Objective: I can find simple interest](https://reader030.vdocuments.site/reader030/viewer/2022020717/551b09ee5503462e578b5719/html5/thumbnails/5.jpg)
Grade Homework - Evens
Pg 162 - #2: $98.5Pg 163 - #2: $1,080.00
#6: Sport CityPg 164 - #10: In ClassPg 165 - #16: $26.80
#18: $4.90
![Page 6: 7.RP.3b Day 4 first day Objective: I can find simple interest](https://reader030.vdocuments.site/reader030/viewer/2022020717/551b09ee5503462e578b5719/html5/thumbnails/6.jpg)
Notes
• When you put money in the bank you earn interest.
• Interest is money you are paid when you invest or money you pay when you borrow from someone else.
![Page 7: 7.RP.3b Day 4 first day Objective: I can find simple interest](https://reader030.vdocuments.site/reader030/viewer/2022020717/551b09ee5503462e578b5719/html5/thumbnails/7.jpg)
Notes
• Principal is the amount you borrowed or invested.
• We use the letter “P” for principal.
• John borrowed $2000 to buy a car.
![Page 8: 7.RP.3b Day 4 first day Objective: I can find simple interest](https://reader030.vdocuments.site/reader030/viewer/2022020717/551b09ee5503462e578b5719/html5/thumbnails/8.jpg)
Notes
• The interest rate is the percent that you pay because you borrowed the money.
• John paid a 3% interest rate on his car.
• We use “r” for rate.
![Page 9: 7.RP.3b Day 4 first day Objective: I can find simple interest](https://reader030.vdocuments.site/reader030/viewer/2022020717/551b09ee5503462e578b5719/html5/thumbnails/9.jpg)
Notes
• Time is how long you borrowed or invested your money. Time is in years.
John is going to make payments on his car for 4 years.
We use “t” for time.
![Page 10: 7.RP.3b Day 4 first day Objective: I can find simple interest](https://reader030.vdocuments.site/reader030/viewer/2022020717/551b09ee5503462e578b5719/html5/thumbnails/10.jpg)
Notes
• John borrowed $2000 at a 3% interest rate for 4 years.
![Page 11: 7.RP.3b Day 4 first day Objective: I can find simple interest](https://reader030.vdocuments.site/reader030/viewer/2022020717/551b09ee5503462e578b5719/html5/thumbnails/11.jpg)
Notes
• Interest = principal * rate * time
• I = prt
![Page 12: 7.RP.3b Day 4 first day Objective: I can find simple interest](https://reader030.vdocuments.site/reader030/viewer/2022020717/551b09ee5503462e578b5719/html5/thumbnails/12.jpg)
Notes
• John borrowed $2000 at a 3% interest rate for 4 years.
• I = prt
![Page 13: 7.RP.3b Day 4 first day Objective: I can find simple interest](https://reader030.vdocuments.site/reader030/viewer/2022020717/551b09ee5503462e578b5719/html5/thumbnails/13.jpg)
Notes
• Mrs. Ramirez is investing $400 in a savings account at a simple interest rate of 2%. She plans on investing the money for 6 months. How much interest will she make?
![Page 14: 7.RP.3b Day 4 first day Objective: I can find simple interest](https://reader030.vdocuments.site/reader030/viewer/2022020717/551b09ee5503462e578b5719/html5/thumbnails/14.jpg)
Notes
• Arnold puts $580 into a savings account. The account pays 3% interest. How much will he earn in 5 years?
![Page 15: 7.RP.3b Day 4 first day Objective: I can find simple interest](https://reader030.vdocuments.site/reader030/viewer/2022020717/551b09ee5503462e578b5719/html5/thumbnails/15.jpg)
Notes
• Jenny puts $1,560 in a savings account. The account will pay 2.5% simple interest. How much interest will she earn in 3 years?
![Page 16: 7.RP.3b Day 4 first day Objective: I can find simple interest](https://reader030.vdocuments.site/reader030/viewer/2022020717/551b09ee5503462e578b5719/html5/thumbnails/16.jpg)
Notes
• Mrs. Hanover borrowed $1,400 at a rate of 5.5% per year. How much simple interest will she pay if it takes 8 months to repay the loan?
![Page 17: 7.RP.3b Day 4 first day Objective: I can find simple interest](https://reader030.vdocuments.site/reader030/viewer/2022020717/551b09ee5503462e578b5719/html5/thumbnails/17.jpg)
Notes
• Howard charged $425 to his credit card. If it has an interest rate of 9.9%, how much will he pay after one month?
![Page 18: 7.RP.3b Day 4 first day Objective: I can find simple interest](https://reader030.vdocuments.site/reader030/viewer/2022020717/551b09ee5503462e578b5719/html5/thumbnails/18.jpg)
Homework
• Lesson 8 Skills Practice