If 2x y = 10 and x = 3, what is x - y

Answer Posted / rida

2x+y=10.....(1)
x=3.........(2)
sub (2) in (1)
6+y=10
y=4
soo
x-y=3-4
x-y=-1

Is This Answer Correct ?    11 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

Find sqrt of 113 up to 3 decimal places.

735


Tata Tea cost rupees 95 per kg, Red label costs rupees 100 per kg and Lipton cost rs 70 per kg. How many kgs of each should be blended to produce 100 kg mixture worth Rs.90 per kg, give that the quantity of Red label and Lipton are equal.

733


6 women can do 75 units of work in 8 days by working 5hrs/day. In how many days can 4 women do 30 units of work by working 8hrs/day ?

1387


How many ewes (female sheep) in a flock of 50 sheep are black? 1. There are 10 rams (male sheep) in the flock. 2. Forty percent of the animals are black. statement 1 alone is sufficient, but statement 2 alone is not sufficient to answer the question statement 2 alone is sufficient, but statement 1 alone is not sufficient to answer the question each statement alone is sufficient statements 1 and 2 together are not sufficient, and additional data is needed to answer the question

3555


In Bangalore, during income tax deduction for a single person, the percentage increased by 3% and for middle house-holders, it decreased by 3%. What can you infer?

666






There are 12 boys and 15 girls, How many different dancing groups can be formed with 2 boys and 3 girls. Which of the following fractions is less than 1/3?

985


A person runs 6 ft in 1/4 sec. how much it will run in 10 sec. ans 240

3517


A lorry starts from Bangalore to Mysore at 6.00 A.M,7.00am.8.00 am.....10 pm. Similarly one another starts from Mysore to Bangalore at 6.00 am,7.00 am, 8.00 am.....10.00pm. A lorry takes 9 hours to travel from Bangalore to Mysore and vice versa. A lorry which had started at 6.00pm will cross how many lorries.

1247


why we will appoint you.

1795


5 women given some of their heights(tall,medium,short)Hair( long, plainted),stards(Black or Brown), sari,2 medium,2-short.Tall-no sari.Plainted-medium.Answer the combinations.

939


5 thieves stole diamonds in following way 1st stole half +2 2nd remaining half +2. for 5th there was no diamond how many diamond were there initially

727


Find the longest palendrom in a string? Example Input: abfgerccdedccfgfer Output: ccdedcc i want a solution in C/C++ language

3214


Hi friends i am new to this site. Pls provide me the KVB clerical exam model question papers. pls send to mail id mailstoaaa@gmail.com. Hope u guys will help me.

1730


A farmer has a farm square of 100 sq.m a cow is tied at one and with a rope of 10m length.assume pi-3.what is the area of land the cow can graze.

772


A family I know has several children. Each boy in this family has as many sisters as brothers but each girl has twice as many brothers as sisters. How many brothers and sisters are there?

916