Questions on Algebra: Equations answered by real tutors!

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Question 51154: how do you write an equation for this function
the output is 5 more than 2 times the input.find the input when the output is 17

Click here to see answer by Thanenjayan(7) About Me 

Question 51243: 2x-3=-11-2x. This is what I have done so far.
2x=2x-3=-11-2x+2x
3/3=13/3

Click here to see answer by AnlytcPhil(958) About Me 

Question 51284: what is x in this question work and solve it.

x
_ = 5
12

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Question 51143: -(x+y)+3(5x-6y)=
Click here to see answer by checkley71(8405) About Me 

Question 51313: if t= v-u/a,find a when t=1,u=1 2/3and v=3 1/2
Click here to see answer by rapaljer(3620) About Me 

Question 51239: 3) Suppose a baseball is shot up from the ground straight up with an initial velocity of 32 feet per second. A function can be created by expressing distance above the ground, s, as a function of time, t. This function is s = -16t2 + v0t + s0
• 16 represents 1/2g, the gravitational pull due to gravity (measured in feet per second2).
• v0 is the initial velocity (how hard do you throw the object, measured in feet per second).
• s0 is the initial distance above ground (in feet). If you are standing on the ground, then s0 = 0.
a) What is the function that describes this problem?
Answer:



b) The ball will be how high above the ground after 1 second?
Answer:
Show work in this space.

c) How long will it take to hit the ground?
Answer:

Show work in this space.

d) What is the maximum height of the ball? What time will the maximum height be attained?
Answer:
Show work in this space.



Click here to see answer by THANApHD(104) About Me 

Question 51325: I need help on this promblem on solving equations.
2x+75=102-x

i tried 2 solve it but i think its wrong.
2x+75=102-x
2x+x=75-102
3x=-27
is it right???

Click here to see answer by rapaljer(3620) About Me 

Question 51343: solve using the quadratic formula. show work for credit.
Please help me solve.
4x^2 =4x + 10

Click here to see answer by darq(90) About Me 

Question 51337: i need 2 slove each equation or formula for the specified variable.
h= 12g - 1 , for g

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Question 51341: solve this equation.
4.5 + 2p= 8.7

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Question 51344: solve this equation or formula for the specified variable.
3(2j-k)=108, for j

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Question 51345: i need 2 slove each equation or formula for the specified variable.
2xy=x+7 for x

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Question 51340: solve by completing the square show work for credit
2x^2+6x-2=0
please solve, thanks.

Click here to see answer by darq(90) About Me 

Question 51338: need help on this equation..

5(4-k)= -10k



i tried to do it but not sure.
5(4-k)=-10k
5+5k=-10k
-10k+5k=5
-5=5
k=-1 ?

Click here to see answer by rapaljer(3620) About Me 
Question 51338: need help on this equation..

5(4-k)= -10k



i tried to do it but not sure.
5(4-k)=-10k
5+5k=-10k
-10k+5k=5
-5=5
k=-1 ?

Click here to see answer by THANApHD(104) About Me 

Question 51353: please slove.
2/3 m = 1/2

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Question 51355: please slove for the specified variable.
a= 3b-c for b

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Question 51357: 100=20-5r
please solve.
100=20-5r
-20 -20
_______
80=-5r
answer: -16=r



Click here to see answer by THANApHD(104) About Me 
Question 51357: 100=20-5r
please solve.
100=20-5r
-20 -20
_______
80=-5r
answer: -16=r



Click here to see answer by stanbon(26259) About Me 
Question 51357: 100=20-5r
please solve.
100=20-5r
-20 -20
_______
80=-5r
answer: -16=r



Click here to see answer by minnie(1) About Me 

Question 51356: please solve.
120- 3/4 y = 60

Click here to see answer by stanbon(26259) About Me 

Question 51358: 2-{x-6[x-(4-x)]}=3(x+2)
2-{x-6[x-4+x]=3x+6
2-{x-6[2x-4]}=3x+6
2-{x-12x+24}=3x+6
2-{-11x+24}=3x+6
2+11x-24=3x+6
11x-22=3x+6
8x=28
x=3 1/2
Is this correct? I have difficulty carrying signs through and would like to know if I'm on the right track. Thanks for your help.

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Question 51354: 3x+17=5x-13
please slove.

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Question 51352: please slove.
21-m = -32

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Question 51364This question is from textbook Introductory Algebra
: I have a very hard time when it comes to fractions in these equations!
Please help!!
X+1/3X=8
It's under set 2.3 "Using The Principles Together"
Thank you.
This question is from textbook Introductory Algebra

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Question 51359: [(3x=11)/6]-[(2x+1)/3]=x+5
Please help-I'm stuck.

Click here to see answer by THANApHD(104) About Me 

Question 51395: how do you do this problem? 1/a + 2/b = 3/c Solve for b. I have tired my brain out trying to solve this problem!! Thanks!!
Click here to see answer by Earlsdon(4898) About Me 
Question 51395: how do you do this problem? 1/a + 2/b = 3/c Solve for b. I have tired my brain out trying to solve this problem!! Thanks!!
Click here to see answer by rchill(405) About Me 

Question 51399: 5[2-(2x-4)]=2(5-3x)
Click here to see answer by AnlytcPhil(958) About Me 

Question 51421This question is from textbook introductory algebra
: 8x - 1 = 23 - 4x
If I could see the steps in solving this I can figure out the rest of them. Thank you.
Rick Kalbfell
This question is from textbook introductory algebra

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Question 51369: How do you solve:
3A+2F=240
2A+1F=140
1.5A+.5F=100

Click here to see answer by venugopalramana(3286) About Me 

Question 51237: John has 300 feet of lumber to frame a rectangular patio (the perimeter of a rectangle is 2 times length plus 2 times width). He wants to maximize the area of his patio (area of a rectangle is length times width). What should the dimensions of the patio be, and show how the maximum area of the patio is calculated from the algebraic equation.
Click here to see answer by venugopalramana(3286) About Me 

Question 51453: The triangles in each pair are similar. Find the unknown side length.
click for link:
http://img1.imagetitan.com/img1/1/27/math.jpg
Question submitted by: Sumeet M

Click here to see answer by Paul(988) About Me 

Question 51622: Dave was to inherit 5x as much as Libby. Libby was to inherit 2/5 as much as Hector. The sum that would be shared was $102,000. How much will they each get?
Click here to see answer by checkley71(8405) About Me 

Question 51573: u-6=9
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Question 51766This question is from textbook Practical BusinessMath Procedures
: In a homeless shelter,572 men were counted.This number was 2 3/4 times the number of children and 2 1/2 times the number of women.(a) How many children were homeless? (b) How many women were homeless? (c) What was the total number of the homeless? Round answers to the nearest whole number.This question is from textbook Practical BusinessMath Procedures

Click here to see answer by Nate(3495) About Me 

Question 51816: Hi, My daughter has a word problem that we cannot figure out. She has not been issued a book yet. Please help with the 2 problems below. Thanks so much!!
Problem 1- The local library had a sale to get rid of books that were slightly damaged. It sold paperbacks books for $2.00 and hardback books for $5.00. The library raised $271.00 and sold 89 books. How many hardcover books were sold?
Problem 2- At a record store CD's are $15.00 a piece and Vinyl Records are $10.00 a piece. If JoBob buys 20 albums at $225.00 then how many CD's did JoBob buy? How many Vinyl Records?

Click here to see answer by stanbon(26259) About Me 

Question 51839: The length of a rectangle is 8m more than 6 times the width. The perimeter is 156m. Find the width
Click here to see answer by checkley71(8405) About Me 

Question 51859: W(2W-5) = 180 need to know what W is.
Click here to see answer by AnlytcPhil(958) About Me 

Question 51788: The slope of the line given by 4x - 3y = 11 is
a. 3/4
b. -3/4
c. 4/3
d. -4/3
e. none of these

Click here to see answer by rchill(405) About Me 

Question 51894: Is this problem solveable? Xsquared + X = 1
I have tried (x+1)(x)=1
(-X-1)(-X)=1
Xsquared = 1-x
Thanks

Click here to see answer by ichudov(404) About Me 

Question 51862: what is 13= w/-3 -4? and what is -17=-32-3/5f?

Click here to see answer by tutorcecilia(2042) About Me 

Question 51848This question is from textbook
: an orange contains 80mg of Vitamin C which is 10 times as much as an apple contains. Write and solve an equation to solve n. The numer of mg of vitamin C in an apple.



This question is from textbook

Click here to see answer by funmath(2873) About Me 

Question 51932: Texas on average has 144 tornados per year. Write an equation to estimate how many tornados texas will have in 3 years.
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Question 51954: -5x - (9x + 4) -3
How can this be simplified?
The teacher says the anwer is: - 14x - 7
I think you can't remove the parenthesis

Click here to see answer by funmath(2873) About Me 

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