Linear Equations
What is gradient-intercept form for a linear equation?
y=mx+c
What is 1,00000
1
Solve for x:
3x+1=13
x=4
12 student in a class wear glasses in a class of 20. What percent of students do not wear glasses?
All the angles in a triangle should add up to what degrees?
180 degrees
A rectangle has an area of 15 cm2 The width of the rectangle is 5cm. Find the length.
3 cm
y=mx+c, what part of the formula is the gradient?
m
Simplify: x3*x5
x8
Simplify:
3(a+c)-c
3a+2c
When rolling a fair, six-sided die, what is the probability of rolling a number less than 3?
2/6 or 1/3
Two angles in a triangle are 30 degrees. Find the third angle.
120 degrees.
A circle with radius 12 cm has what area? Leave your answer in terms of pi.
What is the x coordinate for the y-intercept?
x = 0
What is the highest common factor between 45 and 20?
5
Factorise:
2a2+10a
2a(a+5)
When rolling a fair, six-sided die, what is the probability of rolling a prime number?
4/6 or 2/3
360 degrees
10n-2
How do you find the gradient of a line?
Rise over Run or change in y over the change in x.
What is the lowest common multiple of 6 and 7?
42
Solve for x:
3x-1=5x+4
-2.5 or -5/2
A shop has a 15% off sale. The original cost of a shirt is $32. What is the new cost of the shirt?
$27.20
When a transversal crosses two parallel lines, corresponding angles are always...
congruent
A pizza has a radius of 7 inches. A slice is cut with an angle of 40 degrees. Find the area of the slice. Round your answer to the nearest tenth.
17.1 in2
Find the gradient of this line:
4y = 2x+16
Simplify: (2y4)3
8y12
Simplify:
3(x+1)-2(x+3)
x-3
A pair of shoes used to cost $210 and now they cost $150. What percent change is this?
Find the measure of an interior angle in a regular hexagon.
120 degrees
Find the perimeter of a sector which has a radius of 10cm and angle of 32 degrees. Round to the nearest hundredth.
25.59 cm