Jeopardy Day 2

Conversions

100

What is 90% written as a decimal? 

0.90

200

What is 445% written as a decimal? 

4.45

300

What is 0.006 as a percent?

0.6%

400

What is 1/4 as a percent?

25%

500

What is 3/8 as a percent? 

37.5%

Solving Equations

100

Solve.

4n-2n=4

x=2

200

Solve. 

3=x+3-5x

x=0

300

Solve. 

6=-3(x+2)

x=-4

400

Solve. 

-3(1+6r)=14-r

x=-1

500

Solve.

75=3(−6n−5)

x=-5

Probability

100

A bag contains ten black marbles, twenty white marbles, and five grey marbles. You pick one without looking. What is the probability that the marble will be either white OR black? Write as a fraction!

30/35

200

You ask a friend to think of a number from four to twelve. What is the probability that his number will be 8? Write as a fraction! 

1/9

300

You roll a SIX sided die. What is the probability that the value of the roll will be one? Write as a percent rounded to one decimal place. 

16.7%

400

A bag contains 5 blue sticks, 4 red sticks, and 3 orange sticks and you ask a friend to pick one without looking. What is the probability that the stick will be blue? Write as a percent rounded to one decimal place. 

41.7%

500

Each of the letters in the word APPLE is on separate cards, face down on the table. If you pick a card at random, what is the probability that its letter will be A or L? Write as a percent. 

40%

Expanding

100

Expand: 

(x+3)(x-4)

x²-x-12

200

Expand

(3x-5)(-2x+1)

-6x²+13x-5

300

Expand

-4x²(4x-3)

-16x³+12x²

400

Expand

(2x²+x+3)(x+7)

2x³+15x²+10x+21

500

Expand: 

(2x³+2x)(5x²-8)

10x⁵-6x³-16x

Operations

100

3(6+7)

39

200

2 + 7 x 5

37

300

(6-4) x 49 / 7

14

400

(7 x 5) / 5

7

500

(6 + 25 - 7) / 6 

4