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Tax and Tip: IM 7.4.10
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1. Lesson 7.4.10
- IM 7.4.10 Lesson: Tax and Tip
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2. Practice 7.4.10
- IM 7.4.10 Practice: Tax and Tip
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Tax and Tip: IM 7.4.10
IM 6 – 8 Math, GeoGebra Classroom Activities, Jul 30, 2020
“Tax and Tip” from IM Grade 7 by Open Up Resources and Illustrative Mathematics. Licensed under the Creative Commons Attribution 4.0 license.
Table of Contents
- Lesson 7.4.10
- IM 7.4.10 Lesson: Tax and Tip
- Practice 7.4.10
- IM 7.4.10 Practice: Tax and Tip
IM 7.4.10 Lesson: Tax and Tip
You are on vacation and want to buy a pair of sunglasses for $10 or less. You find a pair with a price tag of $10. The cashier says the total cost will be $10.45.
What do you notice? What do you wonder?
What do you notice? What do you wonder?Font sizeFont size
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Different cities have different sales tax rates. Here are the sales tax charges on the same items in two different cities. Complete this table of City 1.
Different cities have different sales tax rates. Here are the sales tax charges on the same items in two different cities. Complete this table of City 2.
Here is the sales tax on the same items in City 3.
What is the tax rate in this city?Font sizeFont size
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For the sales tax on the laundry soap, Kiran says it should be $0.84. Lin says it should be $0.87. Do you agree with either of them? Explain your reasoning.
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Jada has a meal in a restaurant. She adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00.
When the check comes, it says they also need to pay $3.99 in sales tax. What percentage of the subtotal is the sales tax?Font sizeFont size
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After tax, the total is $45.99. What percentage of the subtotal is the total?
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They actually pay $52.99. The additional $7 is a tip for the server. What percentage of the subtotal is the tip?
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The tax rate at this restaurant is 9.5%.
Another person’s subtotal is $24.95. How much will their sales tax be?Font sizeFont size
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The tax rate at this restaurant is 9.5%.
Some other person’s sales tax is $1.61. How much was their subtotal?Font sizeFont size
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Elena's cousins went to a restaurant. The part of the entire cost of the meal that was tax and tip together was 25% of the cost of the food alone. What could the tax rate and tip rate be?
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IM 7.4.10 Practice: Tax and Tip
In a city in Ohio, the sales tax rate is 7.25%. Complete the table to show the sales tax and the total price including tax for each item.
The sales tax rate in New Mexico is 5.125%. Select all the equations that represent the sales tax, , you would pay in New Mexico for an item of cost ?
Here are the prices of some items and the amount of sales tax charged on each in Nevada.
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Write an expression for the amount of sales tax charged, in dollars, on an item that costs dollars.
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Find each amount:
3.8% of 25
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0.2% of 50
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180.5% of 99
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On Monday, the high was 60 degrees Fahrenheit. On Tuesday, the high was 18% more. How much did the high increase from Monday to Tuesday?
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Complete the table.
Explain your process for filling in the table. How did you find the missing values?
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