Ratios & Proportions
Are the following rations proportional?
30/40 = 6/8
Yes-- cross products both equal 240
25 is what percent of 80?
31.125%
A meal costs $20 and you decide to tip 20%. How much is the tip?
$4
True or False: Similar figures must be the same size
False-- For bonus points, name the two criteria similar figures have to meet
What year was the first IPhone released?
2007
Solve for x.
12/x = 108/81
x = 9
18 is 85% of what number?
~21
A shirt is $40 but marked down 25% off. How much do you end up saving?
$10.00
Two similar rectangles have a width of 3 cm and and a width of 6cm. If the smaller rectangle's length is 9cm, what is the larger rectangles length?
18 cm
What country invented paper as we know it today?
China
A train travels 90 miles in 2 hours. How far will it have travelled in 7 hours at the same speed?
315 miles
A student answered 34 out of 40 questions correctly. What percent of the test did they get right?
85%
Pacsun buys their hats for $15 dollars and marks them up 40%. What is the selling price of their hats?
$21
Triangle A has sides that measure 4 in, 6 in , and 8 in
Triangle B has a shortest side of 10 in.
What is the longest side of Triangle B?
20 in
What is the human body's largest organ?
Skin
Grandma's cinnamon roll recipe calls for 2 cups of sugar for every 1/2 a cup of cinnamon. How many cups of sugar will be needed if 9 cups of cinnamon are used for this batch?
36 cups of sugar
21.4%
A restaurant bill was $65. There was an 8% sales tax, and the table decided to tip 20%. What did the total bill come out to?
$84.24
A 5 foot dad casts a 3- foot shadow. How long is his son's shadow if he's 3 feet tall?
1.8 feet
What is the longest-running scripted TV show in US History?
The show has ran from 1989-to present and currently has over 800 episodes
The Simpsons
In the science textbook, 2 centimeters is equivalent to 5 feet in real life. If the diagram of the Tyrannosaurus Rex is 5 cm tall, how tall would a T. Rex be in real life?
12.5 feet tall
If the school soccer team plays 35 games and wins 60% of them, how many games will they have lost?
14 games
A Nintendo Switch originally sold for $299.99. Now that the Switch 2 has released, that price has been marked down by 45%. How much could you buy a Nintendo Switch 1 for today if there's a 5% sales tax?
~$173.25
A student is creating a model of the Space Needle in Seattle for their Art Project. If the model is 12 inches tall and 3 inches wide, and the real building is 605 feet tall, how wide is the real building?
~151 feet tall
Which planet in our solar system has the longest day? 1 day on this planet is equal to about 243 days on Earth
Venus