What is 15% of 80?
12
Simplify 4x−2(3x−7).
−2x+14
Solve for x: 7x+2=4x+14
x = 4
(-2)3
-8
Find the gradient of the line that passes through the points A(1,2) and B(4,5).
1
Increase 60 by 25%.
75
Expand (2x−5)(x+4).
2x^2+3x-20
Solve for x: 3(2x−1)=15
x=3
(32)3
36=729
Find the gradient of the line that passes through the points A(−3,−7) and B(4,5).
12/7
The price of a jacket is $120. If the price is increased by 15%, what is the new price?
$138
Factorize 6x^2 + 11x + 3.
(2x+3)(3x+1)
Solve the simultaneous equations:
3x - y = 4
2x + y = 7
x=2, y=3
Simplify 45/42
AND
7-2
43=64
AND
1/49
Find the length of the line segment between points A(0,0) and B(7,24).
25
An investor bought shares for $2,000. After a year, the value of the shares increased by 12.5%. What is the value of the shares after a year?
$2,250
Add 2x/5 + 3x/4.
(8x +15x)/20 = 23x/20
Solve for x: x2−16=0
x = 4, x = -4
272/3
AND
(52 x 5-4) / 5-3
9
AND
5-2/5-3=51=5
Find the midpoint of the line segment between points A(−2,5) and B(4,−1).
(1,2)
A store sells an item for $75 after applying a 30% markup on the cost price. What was the cost price of the item?
$57.69 (rounded to two decimal places)
Factorize x^2−6x+9.
AND
Simplify (6x^2-7)/3x.
(x−3)(x−3) or (x - 3)^2
AND
2x-4
Solve for x: 2x2−3x−2=0
AND
5x + 2y = 12
3x + 4y = 10
x=2, x=-½
AND
x=1.6, y=0.4
(27x3)⅔
9x2
Find the gradient, length, and midpoint of the line segment between points A(−5,4) and B(7,−8).
gradient: -1
length: 12 square root of 2
midpoint: (1, -2)