Questions on Algebra: Systems of Linear Equations answered by real tutors!

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Question 987221: S=1/2gt^2 for G
Click here to see answer by macston(5194)

Question 987377: 1. A triangle has -one side is x+6
another side is 3x+5
last side 3x+6
what is the three dimensions of the triangle?
Click here to see answer by josgarithmetic(39617)

Question 987356: 3x 4y=9
Click here to see answer by Alan3354(69443)

Question 987385: the sum of three odd no.is 30. the no. choose in 1,3,5,7,9,11,13.Also can repeat no. find the numbers?

Click here to see answer by Alan3354(69443)

Question 987460: 1.
the length of the sides of a triangle are x+2,2x+3 and 5x. If perimeter is 21 find the lengths of the sides?
the length of the shorts side is?
the length of the longest side is?
the length of the intermediate is?
Click here to see answer by algebrahouse.com(1659)

Question 987461: 1. a triangle has 3 sides, one side is x+6, another side 3x+5 and the last side 3x+6 what is the three dimensions of the triangle?
Click here to see answer by josgarithmetic(39617)

Question 987529: The system of equations below has multiple solutions, all of which satisfy the equation y=4/3x-2. What is the value of a?
8x-6y=12
12x-ay=18
a. -6
b. 9
c. 14
d. 18
Click here to see answer by algebrahouse.com(1659)

Question 987536: what is the answer of:
y = 2x-1
y = -2x-4

Click here to see answer by ikleyn(52786)

Question 987568: what is the answer of: 2y + x = 1
4y = 2 - 2x
PLEASE

Click here to see answer by vleith(2983)

Question 987590: 2x+3y=27
2x+3y=24
Find the solution, if one exists. ( if there are infinitely many solutions, express x and y in terms of the parameter t)
Click here to see answer by Alan3354(69443)

Question 987596: The management of hartman rent car has allocated 2.52 million to buy a fleet of new automobiles consisting of compact, intermediate size and full size cars. Compact cost $18,000 each, intermediate size cars cost $27,000 cach, and full size cars cost 36,000 each. If Hartman purchases twice as many compacts as intermediate size cars and the total number of intermediate size car purchase is 100. Determine how how many cars of each type will he purchased?
Click here to see answer by macston(5194)

Question 987625: what are the terms and the coefficent of this expression?
1. 9a^2+5ab
Click here to see answer by Edwin McCravy(20056)

Question 987619: 3x-y=4
-3x+y=-4
find the solution, if one exists. (if there are infinitely many solutions, express x and y in terms of the parameter t)
Click here to see answer by Alan3354(69443)

Question 987527: Given the constraints with the extrema of the feasiblity regions given as
A(3,3) B(11,4) C(16,10) D (10,16) E(5,14)
Profit function is P=3x-2y
At which extremum is the profit maximum, and the minimum?
Is the maximum C
P=3x-2y=3(1^)-2(10)=48-20=28
and the Minimum: the origin O f O,O
Click here to see answer by solver91311(24713)

Question 987450: 7x+3y+6z=-7
-7x+8y+kz=-4,
7x+25y+28z=-30,
for the system to be consistent we must have k≠?
Click here to see answer by Edwin McCravy(20056)

Question 987775: 1. three times a number added to 4 times a number is the same as six times the number minus 6
the equation is?
Click here to see answer by ikleyn(52786)

Question 987773: 1. the sum of a number and 3,multiplied by the sum of the number and 8 is equilvalent to 19
the equation is?

Click here to see answer by ikleyn(52786)

Question 987893: write both equations in slope-intercept form
15/8x - 5/4y =34
5/2x - 5/3y =1

Click here to see answer by Alan3354(69443)

Question 988084: The supply curve for a product is y = 300x + 9000, and the demand curve is y = -100x + 14000, where x represents the price and y the number of items . At what price will the supply equal demand , and how many items will be produced at that price .
Click here to see answer by Fombitz(32388)

Question 988329: -2x+y+4z=9
Click here to see answer by EdenWolf(517)

Question 988335: I need to find the equation of the line (in slope intercept form) passing through point A and B. Figure is not of scale. In the graph, the y=40 and x=3
f(x)=2x^2 + 8x - 15
Click here to see answer by Fombitz(32388)

Question 988432: X-y=-3
4x+y=-2
How do I solve this and graph it?
Click here to see answer by rfer(16322)

Question 988432: X-y=-3
4x+y=-2
How do I solve this and graph it?
Click here to see answer by stanbon(75887)

Question 988389: what is the solution set
x+y+z=19/9
2x+4y+2z=40/9
-x+9y-3z=-29/9
Click here to see answer by Fombitz(32388)

Question 988677: How do you solve 2y times 9y to the fourth power?
Click here to see answer by Alan3354(69443)

Question 988736: 0=x+6+2y
Click here to see answer by stanbon(75887)

Question 988913: How would you solve a problem like 3/4g+16=34
Click here to see answer by Alan3354(69443)

Question 988993: find value of y and x and z.
2x+5y+z=5
3x+2y-4z=2
y+2z=2
Click here to see answer by zhagi17(16)

Question 989219: Find the slope and y intercept of 8y-15x=-40
Click here to see answer by solver91311(24713)

Question 989219: Find the slope and y intercept of 8y-15x=-40
Click here to see answer by TigerAlgebra(40)

Question 989238: 5x - 25y = 10
Click here to see answer by macston(5194)

Question 989516: Y=5x+1 and y=2x-11
Click here to see answer by solver91311(24713)

Question 989452: 80 * ? + 8 = 144
Click here to see answer by macston(5194)

Question 989569: During a recent season, Adrian Gonzalez and Hanley Ramirez hit a combined total 46 home runs. Gonzales hit 6 more home runs than Ramirez. How many home runs did they each hit ?
Click here to see answer by stanbon(75887)

Question 989648: x-y+2z=-7
y+z=1
x=2y+3z
I did start this problem but got stuck fairly quickly. We're supposed to be solving using substitution or elimination. Please get back to me as soon as possible, thanks!
Click here to see answer by Alan3354(69443)

Question 989769: list the pairs (x,y) for which x and y are positive integers such that 7x+2y=27
Click here to see answer by stanbon(75887)

Question 989665: Mrs Brown is ordering a photo. The 5" by 7" prints cost $8 each and the 8" by 10" photos cost $22 each for a total of $168. If she bought 14 photos, how many of each type did she get?
Click here to see answer by macston(5194)

Question 989685: X-1/4=x/3+7 3/4
Solve for x
Click here to see answer by macston(5194)

Question 989830: 2x+4y+3z=10
3x - y + 6z = 15
5x + 2y - z = 25
three equation three unknown
what is x, y, and z?
Click here to see answer by Boreal(15235)

Question 989601: 7-5z=17+5z
Click here to see answer by farohw(175)

Question 990022: Make up a pair of linear equations with solution: x = 6 and y = 10.
Click here to see answer by stanbon(75887)

Question 990347: Describe two applications for graphing linear equations

Click here to see answer by josgarithmetic(39617)

Question 990423: 3, 5 is on the graph of 3x + 5 y equals 30 tell whether the statement is true or false and justify your answer
Click here to see answer by Boreal(15235)

Question 990655: If X+y+z=112 and y=4x and z=11y then find the value of y
Click here to see answer by ikleyn(52786)

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