Algebra Answers

-2/3+(-4/5)

Out of 400 students in a final year of a senior secondary, 300 are offering Biology and 190 are offering Chemistry. 1. How many students are offering both Biology and Chemistry if 70 students are offering neither Biology nor Chemistry. How many students are offering Biology only?

government agency has a construct 30 kilometre of air strip in 6 month it takes 450 workers to do the job but the order is extended by another 10 kilometre the agency must also finish the task in 4 months how many more workers put the agency hire to complete the strip on time

The School Education and Reading Culture Conference was organized in the Colors Hall. The maximum number of seats in a row was two-fifths (1/4). If the number of seats in each row was doubled, there would have been twice as many queues. How many delegates were present for the council if no single seat was vacant in the House?

The distance between the dots is 1 kilometre. There are two houses on the road, and two more house are going to built. The local council has asked you where they should be put so that given any of the distances from 1 to 12, there are two houses that are that far apart. Of course, the two houses that are there are separated by 1 kilometre or 12 kilometres, depending upon what direction you travel, so you only have to concern yourself with the distances of 2, 3, 4, 5, 6, 7, 8, 9, 10, and 11.

United Millers imports wheat from U.S.A at initial cost of 350 dollar per tone.The
shipping costs and customs duty are then charged as 25% and 15% respectively.
When the wheat reached Mombasa,an 8% of the initial cost is incurred to transport
it to Kisumu.
(a)Given that 1 US dollar = Ksh 82.40 ,calculate the total cost of importing 5 tonnes of
wheat in Ksh.
(b)The united millers intend to make a profit of 25%. Giving your answer to the
nearest ten cents,calculate the price at which a 2 kg packet of wheat should be
sold.
c.How much profit shall the company realize from the sale of 1 tonne of wheat.

1-find the common ratio and the seventh term of the following sequence :2÷9,2÷3,6,18.
2- the first term of a geometric series is 1 and the fourth term is 27.find the sum of the first terms.

1-find the next four terms of an arithmetic sequence 9,16,23.....
2-determine the first 3 terms of the arithmetic progression of which the 5th term is (7+9x) and d=2x

1- find the common ratio and seventh term of the following sequence: 2÷9 ,2÷3,2,6,18....
2-the first term of a geometric series is 1 and the fourth term is 27.find the sum of the first terms.

1- find the next four terms of an arithmetic sequence 9,16,23........
2-determine the first three terms of arithmetic progression of which the 5th term is (7+9x) and d=2x