Debbie starts driving her dragster from rest and constantly accelerates to 60 mph in 10 seconds. How far does she travel in those 10 seconds?
1/12 mile
Ten seconds is 1/6 of a minute and 1 minute is 1/60 of an hour, so 10 seconds is 1/360 of an hour.
If you graph her trip with the speed on the y-axis and the time on the x-axis, you get a triangle with height of 60 mph and width of 1/360 of an hour. To calculate the area of the triangle, you multiply 1/2 × 1/360 × 60 = 1/12.
1/12 mile
Ten seconds is 1/6 of a minute and 1 minute is 1/60 of an hour, so 10 seconds is 1/360 of an hour.
If you graph her trip with the speed on the y-axis and the time on the x-axis, you get a triangle with height of 60 mph and width of 1/360 of an hour. To calculate the area of the triangle, you multiply 1/2 × 1/360 × 60 = 1/12.
Hester goes out for an afternoon bicycle ride. She rides for one hour at five miles an hour, then three hours at four miles an hour and finally two hours at seven miles an hour. How many miles did she ride in total?
31 miles.
1 hour at 5 mph = 5 miles
5 + 12 + 14 = 31 miles
31 miles.
1 hour at 5 mph = 5 miles
5 + 12 + 14 = 31 miles
The letters A through H can be assigned the following values to make all the equations true. Find the right combination of letter values.
Values: 1, 4, 5, 7, 9, 14, 16, 21
C + F = G
A = 1
A = 1
Find rhymes for each set of words so the first is a category and the rest are items in the category.
For example, LOYALTY: spring, clean, rinse → ROYALTY: king, queen, prince
1. LOIN: mortar, climb, pickle
1. COIN: quarter, dime, nickel
1. COIN: quarter, dime, nickel
Barry is 67 years old. His daughter is 43. When was she 1/3 as old as him?
31 years ago.
Here’s one way to solve it.
Let x = how many years ago
We get this equation: 67 – x = 3 × (43 – x)
Solving for x gives us 31.
31 years ago.
Here’s one way to solve it.
Let x = how many years ago
We get this equation: 67 – x = 3 × (43 – x)
Solving for x gives us 31.
If this site had a phone number, I would want it to be 743-3537. Why?
Because the numbers on a phone would spell the word RIDDLES.
Because the numbers on a phone would spell the word RIDDLES.
What does this represent?
8 = S O A S S
8 = Sides of a stop sign
What is two days after the day after the day before yesterday?
Tomorrow.
The day before yesterday is two days ago.
The day after the day before yesterday (2 days ago) is yesterday.
And two days after yesterday is tomorrow.
Tomorrow.
The day before yesterday is two days ago.
The day after the day before yesterday (2 days ago) is yesterday.
And two days after yesterday is tomorrow.
The Barber of Seville shaves all men living in Seville.
Who shaves the Barber of Seville?
Nobody. The Barber of Seville is a woman. Female barbers are rare, but they exist .
And for more fun with barbers, check out the Barber paradox .
Nobody. The Barber of Seville is a woman. Female barbers are rare, but they exist .
And for more fun with barbers, check out the Barber paradox .
Fill in the blanks to make three common, English words (no plurals). The answers are a person, a place and a thing, in that order.
1. _ _ L F B A _ _
1. HALFBACK
1. HALFBACK