Algebra Flashcards
To learn how not to be stupid and complete Algebra
Solve
x - 3 = 9
C Grade
X= 12
a) How many pupils scored less than 40 percent?
b) How many pupils scored between 40 and 80 per cent?
c) Work out the median score.
A= 20
B= 70
C= 60%
A cylinder has a radius of 4 cm and volume of 800 cm3. A similar cylinder has a volume of 200 cm3. Find the radius of the smaller cylinder.
Give your answer to 1 decimal place.
2.5cm
Condition Number of Cars
Perfect 30
Faulty 12
a) A car is chosen at random.
What is the probability it is faulty?
Give your answer as a fraction in its lowest terms.
b) Estimate how many cars would be faulty if Bobby purchased 350 model cars.
A= 2/7
B= 100
Solve
(3.2 x 104) - (5 x 103)
2.7 X10^4
Calculate the distance the ladder reaches up the wall.
Give your answer to a sensible degree of accuracy.
USE PYTHAGORAS
C Grade
6.6m
A rectangle has an area of 20 cm2. Its length and width are enlarged by scale factor 3. Find the area of the enlarged rectangle.
180cm
Solve
(3.2 x 104) x (5 x 103)
1.6 X10^8
Simplify
2x + 6y + 2y - x
C Grade
X+8y
Solve
2x + 4 > 16
C Grade
X=6
x/3 = 7
C Grade
X=21
Solve
x - 3 = 9
C Grade
X= 12
Simplify
2x + 6y + 2y - x
C Grade
X+8y
A rectangle has an area of 20 cm2. Its length and width are enlarged by scale factor 3. Find the area of the enlarged rectangle.
180cm
A cylinder has a radius of 4 cm and volume of 800 cm3. A similar cylinder has a volume of 200 cm3. Find the radius of the smaller cylinder.
Give your answer to 1 decimal place.
2.5cm
