Questions on Algebra: Equations answered by real tutors!

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Question 841798: (Can someone help me with this question please?, thanks)
Solve the system of equations by graphing. Then classify the system.
3x-9y=36
2x-6y=-12
What is the solution of the system?
a)The solution is___?
b)There are infinitely many solutions
c)There is no solution
Is the system consistent or inconsistent?
a)inconsistent
b)consistent
Are the equations dependent or independent?
a)dependent
b)independent
Click here to see answer by ewatrrr(24785)

Question 841911: Jose has $20,000 to invest. He invests x dollars at 4% and the rest at 4.5%
Write an equation for the total amount of money T Jose will have in one year

Click here to see answer by ewatrrr(24785)

Question 841925: I need to solve x-9=-4+7 first combine like terms on each side
Click here to see answer by Alan3354(69443)

Question 841982: If 3/4 carrot diamond costs 360 dollars and 1.5 carrot diamond costs 1440 dollars, write an equation finding relation between cost and weight of diamond?
Thanks
Click here to see answer by richwmiller(17219)

Question 842031: If one glass of milk contains 430mg of calcium, then how much calcium is there in 3 1/4 glasses of milk?
Click here to see answer by josgarithmetic(39617)

Question 842033: if 1/2 cups of fruit cocktail contains 55mg of potassium, then how many milligrams of potassium is in a 3/4 cup serving?
Click here to see answer by rfer(16322)

Question 842039: A newborn is 18.5 inches long. What is that length in centimeters? (Nearest tenth)
Click here to see answer by LinnW(1048)

Question 842283: If y varies directly as x, find constant of variation k and the direct variation equation for the situation. y=0.6 when x=0.6
Click here to see answer by richwmiller(17219)

Question 842469: if 7 students of a middle school are seated in a gymnasium on each bench in a row, 15 students remain. How many rows are there in the gymnasium?
Click here to see answer by Theo(13342)

Question 842542: Solve the equation. (Enter your answers as a comma-separated list.
If there is no real solution, enter NO REAL SOLUTION.)
x2 − 6x + 6 = 0
Click here to see answer by ewatrrr(24785)

Question 842572: Make C the subject of the formula. F=32+9c/5
Click here to see answer by ewatrrr(24785)

Question 842581: The length of a rectangle is twice its width.If the length is decreased by 3cm,and the width is increased by 3cm,the area of the rectangle is increased by 6cm^2.Find the length and width of the new rectangle
Click here to see answer by ranger(12)

Question 842595: 40 biscuits are shared amongst three children,A,B and C ,so that B has four more than A and C has twice as many as B.how many do they each have
Click here to see answer by ewatrrr(24785)

Question 842617: Solve for X and Y :
8/x + 6/y = 6 and 1/x + 1/y = 1/6
Click here to see answer by LinnW(1048)

Question 842649: let g and h be two functions defined by:
g(x)=(x-1)(x-6)
h(x)=-9x+1
for any real number x.
Find g/h(2) and then find all values that are NOT in the domain of g/h. If there is more than one value, separate them with commas.
so I have g/h(2):
(x-1)(x-6)/-9x+1(2)
I don't know how to find the values that are NOT in the domain of g/h.
Click here to see answer by josgarithmetic(39617)

Question 842638: If y=22x-45 / 13 and X and Y are equal,find the values of X and y

Click here to see answer by Fombitz(32388)

Question 842563: Whats a simply way to work out this problem and why? solve the following equation for a:2a/3=8+4a
Click here to see answer by Fombitz(32388)

Question 842767: How Do I get The Answer To This:
9+3y-2y=14
Click here to see answer by jim_thompson5910(35256)

Question 842717: Evaluate the following expression when x = minus 8 and y = minus 6. Give your answer as an integer or single fraction.
( minus 5 x over 10 y minus 10 y squared + 8 ) =
Click here to see answer by richard1234(7193)

Question 842781: What is x
-3x + 7 > 4
Trying to help my little sister with homework. We are stuck plz help havent been in school in 11yrs lol
Click here to see answer by richard1234(7193)

Question 842814: The symbol # is defined as a arithmetic operation. Given that 10#5=9, 11#6=7, 13#8=3, Determine the value of 6#3.
Click here to see answer by richard1234(7193)

Question 842882: I am trying to help my daughter solve the below problem:
2/3 x + 3 = 1/4 x -7
Click here to see answer by Alan3354(69443)

Question 842957: A pot contains 8 L of brine at a concentration of 120 g/L. How much of the water should be boiled off to increase the concentration to 160 g/L
Click here to see answer by josgarithmetic(39617)

Question 843066: v=1/3bh v=35, h=5
Click here to see answer by Fombitz(32388)

Question 843089: Solve the system by graphing.
5x + y = -14
x + 6y = 32
The answer is {(-4, 6)} I'm not sure of how to get the answer. I need to see it worked out.

Click here to see answer by Fombitz(32388)

Question 843093: Without solving, tell if the system is inconsistent, the equations are dependent, or neither.
x + 5y = 24
2x + 10y = 48
Click here to see answer by ewatrrr(24785)

Question 843094: Pushing a lawn mower requires a force of 200 Newtons. If 4,000 joules of work is performed, how far has the mower moved?
Click here to see answer by Fombitz(32388)

Question 842855: Find the coordinates of the other endpoint of a segment with an end point of X(13,5)and Midpoint M(8,3)
Click here to see answer by Fombitz(32388)

Question 842837: x-9=5
Click here to see answer by Fombitz(32388)

Question 843134: solve for x
x-3.98=4.2
Click here to see answer by ewatrrr(24785)

Question 843165: Solve the system by the elimination method. I need to see it worked out. Answer I'm supposed to get is {(-1,9)}
x + 7y = 62
6x - 6y = 48
Click here to see answer by richwmiller(17219)

Question 843181: $7.20/1gallon = ?/1pint
Use conversion factors or be sure that your thought process is clear.
Thanks!(:
Click here to see answer by ewatrrr(24785)

Question 843197: Hi I need help with this problem please I tried it over 3 times and the answer I arrive at is always wrong. Thank you.
Solve for z: 2x-4z=3-y
Multiple Choice Answers:
A) Z= 2x-y+3/4
B) Z= 3-2x-y/4
C) Z= 2x+y-3/4
D) Z= -4(2x+y-3)
Click here to see answer by ewatrrr(24785)

Question 843246: explain why x+3=5 and x=2 are equivalent equations
Click here to see answer by ewatrrr(24785)

Question 843273: Find all solutions of the equation x^2+1x+7=0 and express them in the form a+bi
Click here to see answer by jim_thompson5910(35256)

Question 843267: The sum of the digits of a two digit number is 13 if the digits are reversed the new number is nine more than the original number find the original number
Click here to see answer by LinnW(1048)

Question 843549: (X+3)(x-4) - 2(x-3)^2 =-2x(x-3)+(x-18)
Click here to see answer by Fombitz(32388)

Question 843412: Z^3-3z^2-4z=0
Click here to see answer by LinnW(1048)

Question 843365: If a client had 960mL of urine every 8 hours, what is the rate per hour?
Click here to see answer by LinnW(1048)

Question 843533: (q+3)(3q-4)(2q+1)=0
Click here to see answer by Fombitz(32388)

Question 843746: 2x+5=3x+3
Click here to see answer by jim_thompson5910(35256)

Question 843770: 3/5x=6
Click here to see answer by Alan3354(69443)

Question 304859: If s varies directly as T when s=8, t=3 find s when t=12
Click here to see answer by richwmiller(17219)

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