Tax, Tip, and Discount
Fractional Relationships
Vocabulary
Circles
Potpourri
100

A granola bar costs $2.00. If the tax is 7.5%, what is the total cost of the granola bar?

$2.15

100

A basketball team scores 15 points in the first half of a game. If they keep up the same win rate, how many points will they score for the whole game?

30 points

100

The perimeter of a circle is called this.

Circumference

100

This is half of the diameter

Radius

100

The sum of all the angles in a triangle.

180 degrees

200

The bill at a restaurant is $45.60 after tax. You want to tip 20%. What would the total price of the bill after tax and tip?

$54.72

200

If a car uses 9 1/4 gallons of gas to go 260 miles, how many gallons of gas will it need to go 780 miles?

27 3/4 gallons

200

Name of the theorem that states that the sum of any two sides must be greater than the measure of the third side.

Triangle Inequality Theorem

200

The formula used to calculate the area of a circle

A = pi * r2

200

Can you make a unique triangle with the sides 16, 12, and 20?

Yes.

300

At the store you buy two shirts, and each shirt normally costs $19.99. However, the store is having a sale buy one, get one 50% off. The sales tax is 8%. What is the total price of the two shirts after the discount and tax?

$32.38

300

You purchased 2 1/5 pounds of M&M's for for $23.00. How much were the M&M's per pound?

$10.45

300

This is usually represented as a Greek symbol and is used to calculate the area and circumference of a circle.

Pi

300

A circle has a diameter of 12.20 feet. What is the circumference of the circle. (Use 3.14 to approximate pi)

37.68 feet

300

Can you make a unique triangle with the sides of 17, 4, and 22?

No.

400

You buy a new set of headphones. Your friend asks you how much the headphones were. You do not remember the price of the headphones, but, weirdly, you remember you paid $5.81 in sales tax. You also know that the Colorado state sales tax is 8.3%. What was the original cost of the headphones?

$69.99

400

A 10,000 gallon swimming pool requires 4 ounces of a chemical. How many ounces of the chemical would be required for a 200 gallon pool?

2/25 ounces

400

Term used to describe when two ratios or fractions that are equal to each other.

Proportions

400

The radius of a circle is 6.3 cm. What is the area of the circle? (Use 3.14 to approximate pi and round to the nearest hundredth)

124.63 cm2

400

A circle is inscribed in a square. One of the sides of the square is 14 mm long. The region outside of the circle is shaded. What is the area of the shaded region? (Use 3.14 to approximate pi)

42.14 mm2

500

You opened your own taco shop. A customer orders 3 tacos for $1.50 each. The customer also has a coupon for 10% off his order. The sales tax 6%, and she leaves a 15% tip. How much total does the customer pay after the discount, tax, and tip?

$4.94

500

Chef Rita is cooking for a Sunday brunch. She knows that 22 pancakes can feed 8 people. She is wondering how many people she can feed with 55 pancakes. She assumes each person eats the same quantity of pancakes.

20 people

500

The constant value (k) of the ratio of two proportional quantities (y = kx)

Constant of proportionality

500

The circumference of a circle is 314 yds. What is the radius of the circle?

50 yds

500

The area of a circle is 78.5 m2. What is the diameter of the circle?

5 m

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