Probability

 Reduce all answers to the lowest terms.

1)	What is the probability of a head showing on a twenty-cent coin when thrown into the air and it landing on the ground?
2)	If one card is randomly chosen from a deck of cards without jokers, what's the probability of it being a prime number?
3)	If one letter is randomly picked from the alphabet, what would be the probability of that letter being a vowel?
4)	If one letter is randomly picked from the alphabet, what would be the probability of that letter being a consonant?

A boy has a bag of 20 marbles; 7 red, 3 blue, 4 green and 6 yellow. 

A)   Red?
B)   Yellow?
C)   Blue?
D)   Green?
E)  Not Blue?
F)   Red or Yellow?

 Algebraic Fractions

Simplify the following algebraic fractions.   
Reduce all answers to the lowest terms.

X	+	X	=		+		=
4		5

2X	+	X	=
3		8

4X	-	2X	=
7		5

 Problem (Geometry)

A right triangle truss has a hypotenuse of 6 metres and a height of 2.3 metres. What is the length of the base?

Round your answer to the nearest hundredth.   

Answer:   metres