Tutors Answer Your Questions about Equations (FREE)
Question 52067: My son has the below homework problem. I tried to help him, but it's been a while since I had algebra and I've long since forgot a lot of the rules. Any help that you can give would be more than appreciated!!
Peter says that the following equations are two ways to write the SAME formula. Solve them both for the same variable to decide whether or not you agree with Peter. Explain how you made your decision, based on solving for variables.
p= (r-1)/r p/(p+1)= r
Click here to see answer by Earlsdon(4898)   |
Question 52211: To whom may it concern,
I have the following question but I don't seem to be able to do it.
Forty eight marbles are divided into 3 groups. Then, some marbles are removed from the first group and put in the second group so that the number of marbles in the second group is doubled. Some marbles are removed from the second group and put it the third group so that the number of marbles in the third group is doubled and some marbles are removed from the third group and put it the first group so that the number of marbles in the first group is doubled. As a result, there are equal numbers of marbles in each group. Find the number of marbles in each group originally.
Thanks a lot. Bye.
CH Lam
Click here to see answer by i<3algebra(2) |
Question 52263: A teacher bases her class grade on four exams @100 pts. each. George has taken 3 exams with an average grade of 87%. What does he need on his fourth exam, to give him a final grade of 90%?
I have no idea. Please help!!
Click here to see answer by atif.muhammad(135) |
Question 52263: A teacher bases her class grade on four exams @100 pts. each. George has taken 3 exams with an average grade of 87%. What does he need on his fourth exam, to give him a final grade of 90%?
I have no idea. Please help!!
Click here to see answer by tutorcecilia(2042) |
Question 52212: To whom may it concern,
I have problem to do thee question below.
On a bus, 99 40-cent tickets and 80-cent tickets costing a total of $56 were issued. Find the difference between the number of 40-cent tickets and the number of 80-cent tickets issued.
Please help. Thank you.
CH Lam
Click here to see answer by checkley71(8405) |
Question 52287: A pension fund owns 12,000 shares in a stock mutual fund and a mutual bond fund. Currently, the stock fund sells for $12 per share and the bond fund sells for $15 per share. If the value of the securities is $165,000, how many shares of each does the pension fund own?
Click here to see answer by checkley71(8405) |
Question 52393: A dress was first marked down 20% off original price. Then marked down 25
% more off the first sale price and finally 30% off the second sale price. It was sold for 63$ What was the original price? There is no textbook the teacher made it up.
Click here to see answer by checkley71(8405) |
Question 52534This question is from textbook
: I am trying to solve for N and am getting a -21. I should be getting a 21 and can't find where I went wrong. Help
The equation is 3(n-5)- (6-2n)=4nThis question is from textbook
Click here to see answer by Earlsdon(4898) |
Question 52678: To whm may it concern,
I have tried but still didn't managed to solve it.
Two men, P and Q, start at the same point and travel in opposite directions by motorcycle. The speed at which P travels is 4km/h faster than that of Q’s. After 5 hours, they are 580 km apart. Find the speed in km/h at which P travels.
Thank you.
Click here to see answer by funmath(2873) |
Question 52680: To whom may it concern,
Two boys, A and B are 600 m apart. They walk towards each other at speeds of 35 m per minute and 25 m per minute respectively. After how many minutes will they meet each other ?
Thank you very much,
Click here to see answer by terbear1963(43) |
Question 52680: To whom may it concern,
Two boys, A and B are 600 m apart. They walk towards each other at speeds of 35 m per minute and 25 m per minute respectively. After how many minutes will they meet each other ?
Thank you very much,
Click here to see answer by funmath(2873) |
Question 52679: Dear Tutors,
Please find the solution for the foolowing questions.
Sam bought 40 oranges for a certain sum of money. If each orange had cost 5 cents less, he would have received 5 more oranges. How many cents does each orange cost ?
Thank you.
Click here to see answer by checkley71(8405) |
Question 52677: To whom may it concern,
I have problem to solve this questions :-
Peter and Jane together have $90. If Peter gave Jane $16, he would then have $14 less than Jane. How much does Peter has originally ?
Thank you.
Click here to see answer by checkley71(8405) |
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