Calculate 3.8 x 9.25
35.15
Expand and simplify (x + 5)(x - 3)
x2 + 2x - 15
Share £180 in the ratio 4 : 1 : 4
£80 : £20 : £80
Find the area of a trapezium with parallel sides 8 cm and 12 cm and height 6 cm.
60 cm2
The scores are: 11, 15, 18, 18, 20, 24, 25, 29
Find the mean.
Mean = 20
Write 0.00048 in standard form.
4.8 x 10-4
Solve for x:
5x - 7 = 3x + 13
x = 10
A car travels 180 miles using 24 litres of fuel. How much fuel is needed for 240 miles?
32 litres
A sector has an angle of 240 degrees and a radius of 9 cm. Find its area in terms of pi.
54 pi cm2
Two fair dice are rolled.
Find the probability that the total score rolled is 10. Give your answer in its simplest form.
1/12
Evaluate 3/5 + 5/6
43/30 or 1 13/30
Factorise completely: 4x2 - 12x
4x (x - 3)
Increase £256 by 3.5%
£264.96
A cylinder has radius 11 cm and height 10 cm. Calculate its volume in terms of pi.
1,210 pi cm3
The probability that a student studies French is 0.42.
The probability that a student studies Spanish is 0.36.
The probability that a student studies both languages is 0.18.
Find the probability that a student studies neither language.
0.4
Work out 271/3 + 811/2
12
Solve for x:
x2 - 169 = 0
x = 13 or -13
The ratio of boys to girls in a class is 3 : 9.
There are 84 students altogether.
How many girls are there?
63 girls
A right-angled triangle has sides 5.3 m and 5.6 m. Find the hypotenuse correct to 1 decimal place.
7.7 m
The line of best fit for a scatter graph is:
y = 4x+13
Estimate the value of y when x = 12.
61
A population increases from 48,000 to 62,400. Calculate the percentage increase.
30%
The curve has the equation y = x2 + 4x - 5. Find the coordinates of the turning point.
(-2, -9)
A shirt costing £85.50 is reduced by 20% and then increased by 20%.
What is the final price?
£82.08
The interior angle of a regular polygon is 160 degrees. How many sides does the polygon have?
18 sides
A bag contains:
Two balls are chosen without replacement.
Find the probability that the two balls are different colours. Give your answer as a fully simplified fraction.
74/105