Numbers
Probability
What's Your Base?
Fractional Fractions
What's My Line?
100

The Additive Identity

0

100

You flip a coin 100 times and it lands on heads 53 times. What is the theoretical probability for flipping heads.

1/2

100

10234 = ? in base 10

75

100

1/(1/(1/3))

1/3

100

If two lines intersect at a right angle, then their slopes are 

Opposite reciprocals

200

Division is multiplication by

Reciprocal

200

If you roll a pair of dice, what is the probability of rolling a sum that is prime?

4/9

200

7510 equals ? in base 2

1001011

200

(4/3)/(1/(4/3))

16/9

200

Another name for the starting value is

y-intercept

300

i^22=?

-1

300

If I draw one card from a standard deck of cards, what is the probability that I draw a SPADE or a Jack?

4/13

300

2115  is what number in base 2?

111000

300

2/(2+1/(2/3))

4/7

300

Solve the linear system 

2x+3y=12

y=-2x+4

(0,4)

400

The set of Rational Numbers is a subset of

The set of Real Numbers.

400

P(A or B) =

P(A) + P(B) - P(A and B)

400

246 + 146 = ?   in base 6

42

400

1/(1+1/(1+1/(1+2))

4/7

400

A company rents out electric scooters. They charge a flat fee to unlock a scooter plus a per-minute fee for riding it. One day, you notice that a 15-minute ride costs $9.75 and a 25-minute ride costs $13.75. 

Find the equation that relates the total cost C (in dollars) to the number of minutes m ridden.

C=0.4m+3.75

500

Write as a fraction

1.bar28

127/99

500

If you roll one six-sided die and draw one card from a standard deck, what is the probability that you get a six OR a King?

19/78

500

2435 X 125 = ?    answer in base 5

4021

500

1+2/(3+4/(5+6/7))

233/151

500

A water tank is being filled at a constant rate. At 2:00 PM, the tank has 500 liters of water and at 3:30 PM, the tank has 950 liters of water.

How much water will be in the tank at 5:15 PM.

1475 liters