06/13/15

Solve the following system

2x  +z=4   2x-y   =4    x+y-z=0

06/13/15

1.) 4b² - 36b +81 ????,,,and this,,, 2.) m² - 30m + 81 ??? ,,,,and this....3.) n² + n -20 ??

what would be the answer??? please show the full solution...

06/13/15

9n²-49n² ????

What would be the answer here? Please show the full solution... thank you ~

06/13/15

wind speed

an airplane can fly 1216 miles from city A to city B in 4 hours with the wind. The same airplane take 8 hours against the wind for the return trip. What is the speed of the wind?

06/13/15

i have doubt in word problem

two vessels contain mixture of milk and water in the ratio 5:2 and 3:1 respectively. the ratio of milk and water in the new solution if two mixtures are mixed in equal amt    answer 5+2 and 3+1... more

06/13/15

1.) 12m^2+8 ? ,,,,and this ,,,,2.) x^2 + 13x +36 ?

ummm.. can anyone please help me with my homework ... how's this equation? ...

Sequence questions final exam review questions that are giving me trouble.

1. For the sequence 3,7,11,15, ... find:   a)The value of the 15th term   b)sum of the first 11 terms        I know it's easy just to keep adding by 4 until 15 but can you do it through the... more

06/09/15

A family has two cars. The first car has a fuel efficiency of

A family has two cars. The first car has a fuel efficiency of 30 miles per gallon of gas and the second has a fuel efficiency of 40 miles per gallon of gas. During one particular week, the two cars... more

Solve this

2x-y=8 5x-3y=21   A) solve by elimination

06/08/15

Solve using algebra.

Yvette walks at 4 mph to thegrocery store, shops for an hour,then takes a bus averaging 24 mphback home. If the entire trip takes2.75 hours, how far away is thestore?

Solving equation question

A system of equations is shown below. What is the value of X in the solution to the system?   y = 1.5x - 2.5 2x - 6y = -6

06/06/15

How to find perimeter of something?

A rectangular swimming pool has a width that is 6 feet less than its length. The perimeter of the pool is 84 feet. What is length of the pool?

Algebra 1b

16. Simplify: a. √300 b. 4√10-√10 17. Simplify by rationalizing the denominator: (-√18)/√12 18. Solve: a. √k – 8 = 28 b. √(2x+4) = √3x 19. What is the length of the hypotenuse of a right triangle... more

06/01/15

-2x+y=6 Y=-1/2x+1

graph the system below and write its solution

06/01/15

probability

There are 4 queens in a standard deck of 52 cards. You pick one card at random. What is the probability of not picking a queen?

Help with ordering exponents?

Find the missing terms and write them in decreasing order of exponents.21m^7 − 7m^5 + 49m = 7m(_____+_____+_____ )

the height of a photograph is 40 cm greater than the width, and the area of the photograph is 896cm^2. what is the height of the photograph?

the height of a photograph is 40 cm greater than the width, and the area of the photograph is 896cm^2. what is the height of the photograph?

05/27/15

Algebra word problems

One number is 3 larger than another and the sum of their square is 269. Find the number.     Twice the square of a number equals the sum of 5 times the number and 17. Find the... more

05/25/15

4x^2 -12x=7

Solve algebraically for x

05/25/15

Please help me solve this and thank you

(x-3/2)4/3

05/22/15

put 878,000 in Scientific Notation

put 878,000 in Scientific Notation

05/21/15

a mixture contains milk and water in ratio 7:5 if 9 liters of mixture is

a mixture contains milk and water in ratio 7:5 if 9 liters of mixture is replaced by liters of water then the ratio of milk and water becomes the 7:9 how many milk was there in mixture initially

Find the angle

find the angle that is less than 360 degrees and coterminal with 45 degrees. 

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