Tutors Answer Your Questions about Equations (FREE)
Question 208029: Hi all, I was hoping someone could help me solve the following problem. I need to solve for h in the following equation.
0= (6/10)h - (5/1000)h^2
Can someone show me how to do this with full working please? Notes would also be appreciated.
Thanks, -Nick.
Click here to see answer by rapaljer(4671)   |
Question 208087: I can't seem to wrap my mind around how to round an equation at the end of a problem.
Here is the problem: and below I will show my work. The online assistant equates the answer to 13hours That is where I am stuck I am not sure how to come up with that answer.
Problem:
T(x) = 510/x+55 + 230/x+70
The steps I have taken:
1: 510(x+70)/(x+55)(x+70) + 230(x+55)/(x+55)(x+70)
2: 510(x+70)+230(x+55)/(x+55)(x+70)
3: (510x+35700)+(230x+12650)/(x+55)(x+70)
4: 740x+48,350/(x+55)(x+70)
5: 10(74x+4,8350)/(x+55)(x+70)
6: replace x with t(0) 10(74(0)+4835)/(0+55)(0+70)
Now I am supposed to round this. The answer is T=13 Im not sure how to get from step 6 to the answer please help!
Thanks in advance.
Chris
Click here to see answer by jim_thompson5910(35256) |
Question 208087: I can't seem to wrap my mind around how to round an equation at the end of a problem.
Here is the problem: and below I will show my work. The online assistant equates the answer to 13hours That is where I am stuck I am not sure how to come up with that answer.
Problem:
T(x) = 510/x+55 + 230/x+70
The steps I have taken:
1: 510(x+70)/(x+55)(x+70) + 230(x+55)/(x+55)(x+70)
2: 510(x+70)+230(x+55)/(x+55)(x+70)
3: (510x+35700)+(230x+12650)/(x+55)(x+70)
4: 740x+48,350/(x+55)(x+70)
5: 10(74x+4,8350)/(x+55)(x+70)
6: replace x with t(0) 10(74(0)+4835)/(0+55)(0+70)
Now I am supposed to round this. The answer is T=13 Im not sure how to get from step 6 to the answer please help!
Thanks in advance.
Chris
Click here to see answer by checkley77(12844) |
Question 208087: I can't seem to wrap my mind around how to round an equation at the end of a problem.
Here is the problem: and below I will show my work. The online assistant equates the answer to 13hours That is where I am stuck I am not sure how to come up with that answer.
Problem:
T(x) = 510/x+55 + 230/x+70
The steps I have taken:
1: 510(x+70)/(x+55)(x+70) + 230(x+55)/(x+55)(x+70)
2: 510(x+70)+230(x+55)/(x+55)(x+70)
3: (510x+35700)+(230x+12650)/(x+55)(x+70)
4: 740x+48,350/(x+55)(x+70)
5: 10(74x+4,8350)/(x+55)(x+70)
6: replace x with t(0) 10(74(0)+4835)/(0+55)(0+70)
Now I am supposed to round this. The answer is T=13 Im not sure how to get from step 6 to the answer please help!
Thanks in advance.
Chris
Click here to see answer by rapaljer(4671) |
Question 208227: Please help me out with this algebra problem...
I have to graph the function, find the vertex, line of symmetry and max or min. value. I don't really understand it...
f(x)=x^2-8x-1 Thank you for any help!! I really appreciate it!
Click here to see answer by Theo(13342)  |
Question 208390: I would like to know what I am doing wrong and the correct answer.
(c+2)+8=4 I used distibutive property and mutliply whats in the parenthese by 8.
8c+16=4
Then I got rid of the 16 and I balanced each side out.
8c+16-16=4-16
8c=(-12)
Then I divided both sides by 8 and got c = -1.5. I don' think that is the right answer so can you help me? Please and thank you!!!
Click here to see answer by stanbon(75887) |
Question 208695: Can you please help me with this word problem?
The gravitational attraction between two masses varies inversely as the square of the distance between them. The force of attraction is 4 lbs. when the masses are 3 ft apart, what is the attraction when the masses are 6 ft. apart?
Not sure how to even set up, algebra is hard for me!
Click here to see answer by nyc_function(2741)  |
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