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- Three businessmen Makokha,Njau and Odhiambo contributed a total of sh 120,000 to start a business
Three businessmen Makokha,Njau and Odhiambo contributed a total of sh 120,000 to start a business.The ratio of the contributions of Makokha to Njau was 2:3 and that of Njau to Odhiambo was 2:5. How much did Odhiambo contribute?
Date posted: February 23, 2019
- In 14 years time,a mother will be twice as old as her son. Four years ago the sum of their ages was 30 years.
In 14 years time,a mother will be twice as old as her son.Four years ago the sum of their ages was 30 years. Find how old the mother was when the son was born.
Date posted: February 23, 2019
- Use the prime factors of 1764 and 2744 to evaluate
Use the prime factors of 1764 and 2744 to evaluate $\frac {\sqrt 1764}{3\sqrt 2754}$
Date posted: February 23, 2019
- Evaluate; $\frac{-8+(-5 )x(-8)-(-6)}{-3+(-8):2 x 4}$
Evaluate; $\frac{-8+(-5 )x(-8)-(-6)}{-3+(-8):2 x 4}$
Date posted: February 23, 2019
- Solve the following
Solve; $\frac{1}{4x} = \frac{5}{6x} - 7$
Date posted: February 23, 2019
- Solve for x in : 4x+1=32
Solve for x in : 4x+1=32
Date posted: February 23, 2019
- The points A’(3,2) and B’(4,-1) are the images of A and B under a translation. Given that the coordinates of A are (0,1)
The points A’(3,2) and B’(4,-1) are the images of A and B under a translation.Given that the coordinates of A are (0,1), find the coordinates of B.
Date posted: February 23, 2019
- A minor arc of a circle subtends an angle of 105 degrees at the center of the circle
A minor arc of a circle subtends an angle of 105 degrees at the center of the circle.If the radius of the circle is 8.4 cm,find the length of the major arc.
Date posted: February 23, 2019
- Given that sin (x+60)0= cos 2x0.find the value of x
Given that sin (x+60)0= cos 2x0.find the value of x
Date posted: February 23, 2019
- Given the following, find b
Given $a=\begin{pmatrix}4\\3\\ \end{pmatrix}$ , $c=\begin{pmatrix}-2\\-5\\ \end{pmatrix}$ and
3a -2b +4c = $\begin{pmatrix}10\\-19\\ \end{pmatrix}$, find b
Date posted: February 23, 2019
- Simplify the following
Simplify $\frac{3}{3 - \sqrt 7}$
Date posted: February 23, 2019
- The sides of a square are decreased by 5%. Find the percentage change in its area
The sides of a square are decreased by 5%. Find the percentage change in its area.
Date posted: February 23, 2019
- Find the sum of the first 30 terms of the series; 16+19+22……
Find the sum of the first 30 terms of the series; 16+19+22……
Date posted: February 23, 2019
- Factorize completely; a2-15ab +36b2
Factorize completely; a2-15ab +36b2
Date posted: February 23, 2019
- 1.60g of an oxide of Magnesium contain 0.84g by mass of Magnesium. Determine its empirical formula(Mg = 24.0, 16.0)
1.60g of an oxide of Magnesium contain 0.84g by mass of Magnesium. Determine its empirical formula(Mg = 24.0, 16.0)
Date posted: February 25, 2019
- Solve for the following
27x +33x+1 =108
Solve for the following
27x +33x+1 =108
Date posted: February 25, 2019
- Solve the simultaneous equation
3x – 4y =10
X + 3y = -1
Solve the simultaneous equation
3x – 4y =10
X + 3y = -1
Date posted: February 26, 2019
- Find the value of x in
(logx)2 -15(logx) + 56 = 0
Find the value of x in
(logx)2 -15(logx) + 56 = 0
Date posted: February 26, 2019
- Find the equation of a line passing through (4, -3) and parallel to the line whose equation is
4y – 3x = 8.
Find the equation of a line passing through (4, -3) and parallel to the line whose equation is
4y – 3x = 8.
Date posted: February 26, 2019
- Simplify the equation below
Simplify the equation below
Date posted: February 26, 2019