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Question 246436: how many gallons each of 25% alcohol and 35% alcohol should be mixed to obtain 20 gallons of 32% alcohol
This is what I see but it doesn't work right what else am i not seeing?
.25x + .35x = .32(20)
Click here to see answer by Alan3354(30945)

Question 246523: Solve using multiplication principle. (-1/8)x=-9/10
Click here to see answer by richwmiller(9135)

Question 246482: Solve the equation for y
y+2=-4x
Click here to see answer by nicoleann916(1)

Question 246553: can this be done with one variable
how many gallons each of 25% alcohol and 35% alcohol should be mixed to obtain 20 gallons of 32% alcohol

Click here to see answer by ankor@dixie-net.com(15622)

Question 246420: I need help writing this equation:
The quotient of -36 and 9 exceeds 4 times a number by 8
PLEASE SHOW ME HOW TO WRITE THIS EQUTION!

Click here to see answer by ankor@dixie-net.com(15622)

Question 246624: Find the equation of the circle with radius 6 that is tangent to both branches of the graph of y=|x|.
Click here to see answer by dabanfield(803)

Question 246717: Hello,
I need help in solving the following problem, I have tried but I do not understand how to solve the problem.
Here the problem:

Solve

Thank you so much, I think that you guys are great to help people like me, I been out of school for 15 years and it hard trying to remember how to solve these type of problems.

Click here to see answer by nerdybill(6948)

Question 246733: Mr. Hernandez had to interview a total of 63
households in his assignment. He has already
finished 28. What percentage of the households
in his assignments has he finished?
Click here to see answer by dabanfield(803)

Question 246774: Find the absolute value of -5+12I
Click here to see answer by College Student(505)

Question 246786: Factor x^3-x^2-6x
Click here to see answer by book worm(1)

Question 246773: Simplify completely with positive exponents
a^2 b^-3
DIVIDED BY
a^-4 b^2
Click here to see answer by richwmiller(9135)

Question 246800: Hello,
I do I solve this problem the problem is asking for me to find the vertex, the axis of symmetry, and the maximum or minimum function value and, to graph the function

Thank you, so much for your help you guys are great.
Tammy
Click here to see answer by stanbon(57214)

Question 246753: write the first four terms of the sequence defined by the recursion formula
a₁=2
a_n=-2a_n-1+2, n > 1
Click here to see answer by Edwin McCravy(8879)

Question 246787: Express in simplist radical from 5/3-square root of 2
Click here to see answer by solver91311(16868)

Question 246772: Factor completly X^3-X^2-6X
Click here to see answer by College Student(505)

Question 246785: Find the absolute value -5+12i
Click here to see answer by Theo(3458)

Question 246833: what is the answer for the equation x/10+1/5=1 ?????
Click here to see answer by richwmiller(9135)

Question 246878: x/2+x/5+x/3=31
Click here to see answer by richwmiller(9135)

Question 246925: Find the distance between the points (-2,7) and (-4,-3)

show all work
Click here to see answer by solver91311(16868)

Question 246946: The midpoint of QR is M (-3,-5) One endpoint is Q (-11,-3) Find the coordinates of the other endpoint.
Click here to see answer by stanbon(57214)

Question 246965: I am looking for the answer to these questions with 9th grade Algebra 1
ABCD is a rectangle
BC=4x-5,AD=2x+3
Find BC and AD.
ABCD is a square
AB=8x-6 and BC=5x+12
Find the length of each side of the square.
Click here to see answer by solver91311(16868)

Question 246970: Anna flies back and forth between 2 cities that are 1680 miles apart. It takes 4 hours to fly going into the wind and 3.5 hours with the wind. Find the wind speed and the speed of the plane in still air.
Thanks!
Click here to see answer by checkley77(12569)

Question 246987: What is required to disprove a conditional (if-then) statement?
Click here to see answer by stanbon(57214)

Question 246591: Two cars leave town at the same time going in the same direction. One travels at 50mph and the other travels as 70 mph. In how many hours will they 60 mi apart?20 hours

a. 3 hours b. 20 hours c. 50 hours d. 1 hour

Thanks..
Click here to see answer by eli2112(2)

Question 247014: 9x=44-2x
Click here to see answer by eli2112(2)

Question 247047: HOW DO YOU FIND THE ANSWER OF X IF YOUR EQUATION IS 3(X+2)-18
Click here to see answer by solver91311(16868)

Question 247058: What measure of angle is swept by the minute hand during the duration of a class if the class starts at 2:16 P.M. and ends at 2:47 P.M.?
Click here to see answer by solver91311(16868)

Question 247085:
I am confused on how to simplify this fraction. The text book says the answer is not 2x-8, which is what I would have come up with. It says, "choose the value of X to show that this answer is not true." I am confused. The problem is:
2X^2-32/x-4

Thanks, Lynda (attempting to teach my son algebra)
Click here to see answer by nerdybill(6948)

Question 247131: the amount of farmland in the U.S. is decreasing by one acre every .00876 hours as farmland is being converted to non-farm use. At what rate in acres per day is the farmland decreasing?
Translate the following sentence into an equation: The quotient of (x+3) and 5y is the same as the product of x and y
please show your work

Click here to see answer by checkley77(12569)

Question 247130: the amount of farmland in the U.S. is decreasing by one acre every .00876 hours as farmland is being converted to non-farm use. At what rate in acres per day is the farmland decreasing?
Click here to see answer by checkley77(12569)

Question 247153: My daughter has this critical thinking problem and i'm a bit rusy with my algebra :( Can you help?
"An apple costs the same as 2 oranges. Together, an orange and a banana cost .10 cents more than an apple. Two oranges cost .15 cents more than a banana. What is the cost for one of each fruit? "
Click here to see answer by stanbon(57214)

Question 247187: Solve and check.
x-1/x^2+4 = 1.
Click here to see answer by edjones(7569)

Question 246696: i have a problem with a question
x+y+z=4
X^2+y^2+z^2=14
x^3+y^3+z^3=34
x^4+y^4+z^4=......
answer it please
Click here to see answer by ankor@dixie-net.com(15622)

Question 247260: How to decide whether the pair of lines is parallel, perpendicular or neither
2x+3y=8
2x+3y=6
Click here to see answer by blwinbbbles(106)

Question 247318: dealing with slopes 4x+2y=-3 i get -3/2
Click here to see answer by Alan3354(30945)

Question 247337: iam a 3 digit number less than 300 iam divisible by 2 and 5 but not 3 the sum of my digits is 7 what number am i.
Click here to see answer by solver91311(16868)

Question 247337: iam a 3 digit number less than 300 iam divisible by 2 and 5 but not 3 the sum of my digits is 7 what number am i.
Click here to see answer by Edwin McCravy(8879)

Question 247449: i need to find the value of "y" in the equation 6y+2=2y*y-6. i forgot how to remove the y*y (y squared)and solve.
Click here to see answer by oberobic(2304)

Question 247449: i need to find the value of "y" in the equation 6y+2=2y*y-6. i forgot how to remove the y*y (y squared)and solve.
Click here to see answer by checkley77(12569)

Question 247469: 1/2+(2/3*3/4)-(4/5x5/6)=
Click here to see answer by checkley77(12569)

Question 247721: Hello,
I can someone help me with these problems.
1. Find the x and y intercepts, if any, if none exist, state
F(x)=x^2-4x-18

2. Use formula 4.9t^2+vot=s to answer the question;
A coin was tossed downward with an initial velocity of 30 meters per second (v0) at an altitude of 402 meters (s). Approximately how long does it take the coin to reach the ground
This is what I got no sure?
use 4.9t^2 + vot = s
a coin is tossed downward with an initial velocity of 30 meters per second(v0)at an altitude of 402 meters(s). approximately how long does it take the coin to reach the ground?
-4.9t^2-30t = -402 meters
4.9t^2 + 30t -402 = 0
Use Quadratic formula:
t = [-30 +- sqrt(900 - 4*4.9*-402)]/(9.8)
t = [-30 +- sqrt(8779.2)]/9.8
Positive solution:
t = [-30+93.7]/9.2
t = 6.924 seconds

3. Not sure of this one
Translate the problem into a pair of linear equations in 2 variables. Solve the equations using either elimination or substitution. State your answer for the specified variable.
Roberto invested some money at 7% and then invested $2000 more than twice this amount at 9%. His total annual income from the two investments was $2930. How much did he invest at 9%?
Thank you so much, I know you guys are great, I glad you are here to people like me that have been out of school for 15 years.
Tammy

Click here to see answer by Alan3354(30945)

Question 247795: two numbers add up 20 when plusd and 96 when multiplied find the two numbers
Click here to see answer by solver91311(16868)

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