Make a dot somewhere between 1 and 2, and label it k. Place a dot on -k.
Somewhere between -1 and -2
100
8x+1=57
x=7
100
45 mph is how many feet per second?
66 ft/sec.
100
Only 3% of the Earth's water is fresh water. If the Earth has about 139,519,045 sq. miles of water, how much is fresh?
4,185,571 sq. miles of fresh water
(By the way, about half of that is locked up in ice caps and glaciers!)
200
Simplify by combining like terms
−n+(−3)+3n+5
2n + 2
200
Place a dot somewhere between -2 and -3, and label it k. Place a dot on -k.
Somewhere between 2 and 3.
200
5a-3a=33
a=16.5
200
If you drove for 2.5 hours at 65 mph, how far did you travel?
162.5 miles
200
The price of a jacket is $22.50 when it is on sale for 25% off. What was the original price?
$30
300
−5n+3(6+7n)
16n+18
300
Place a dot somewhere between 1 and 2, and label it k. Place a dot on 2-k and label it A.
Place a dot on k-2 and label it B.
A: Somewhere between 0 and 1
B: Somewhere between 0 and -1
300
4(x+7)=56
x=7
300
You figured out how to travel at the speed of light (186,000 miles/second)! How long will it take you to travel to around the world (24,900 miles)?
About 0.134 seconds
300
Your favorite music artist is having a promotional sale! If their album normally costs $24.99, and you get a discount of 30%, how much do you pay?
If you include sales tax of 5.75%, what is your total cost?
About $17.50
About $18.50
400
−2n−(9−10n)
8n-9
400
Place a dot somewhere between 0 and 1, and label it k. Place a dot k^2.
Somewhere between 0 and 1, but much smaller than k.
400
-5(y-3)=y+3
y=2
400
How many hours will you have lived by the time you reach your 16th birthday? (Never mind Leap Year!)
140,160 hours.
400
Sales tax in D.C. is 5.75%. You bought two scarves at $9.99 each and a pair of boots for $32.50. Including the tax, how much did your purchase cost?
$55.50
500
−9(6m−3)+6(1+4m)
-30m+33
500
Place a dot on a number between 0 and -1, and label it k. Place a dot on -2k.
Somewhere between 0 and 1 (but closer to 0 than k).
500
7x+1-x=2/3(2x-4)
x=-11/14
500
The average word is 4.8 letters long. If you can type 65 words per minute, how many letters in a second can you type?
5.2 letters/second
500
A scoop of peanut butter contains 7 grams of protein. If your daily recommended intake of protein is 46 grams, what percent of your daily intake of protein do you get from peanut butter? (Round to the nearest whole percent)