and how do you work it out? Im so stuck!!
127712
That is ridiculously easy if you take one second to think.  Look past the details.  The volume will go from 1ml to 10ml with nothing else changing.\n\nThe volume will increase by ten so the concentration will decrease by a factor of ten and that is that.
549770
Remember for numbers 0-4 you round down, for numbers 5-9 you round up. \nA. $90\nB. $4.56\nThese are just to explain. You can do the rest yourself. If you really don't get it speak to your mom, dad, or teacher, you need help.
290646
You must be a math mathematician!!!!!!!!!  How did you come up with that answer????????????
405069
The trick is that you can do the same thing to both sides of an equation:\n\n1. Divide both sides by W: L = A/W\n\n2. Subtract 32 and multiply by 5/9: C = (F - 32) * 5 / 9\n\n3. Multiply both sides by 2 and divide by b: h = 2A/b\n\nSimple steps, once you have the hang of it.
373536
Factor out first........\n\n3x(3x-5y)\n\n__________\n\n(3x-5y)(3x+5y)\n\n\nCancel:  the 3x-5y goes away both top and bottom.  That should give you a hint as to what to do next.
253965
You have to have a right triangle.\nThen you figure out which is side is opposite or adjacent from the angle you need.
645627
OH NOES THIS IS LIKE A MATH PROBLEM!!!! i can't handle any more variables :( sry.\n\n\nhahahaha.
48178
I CRACKED MY HEAD OPEN LAST NIGHT TRYING TO SOLVE THIS ..... PUZZLE. THAT CRAZY 15 JUST WON'T BUDGE. I JUST COULDN'T FIND A WAY TO GET HIM IN THE RIGHT SPOT. \nsorry. and i did it on paper, too. try that for a change (desperate). i really like puzzles, but this one..... drove me crazy :((((((
250673
yeah.....!!!! just calculate it!!! lol
512253
Are you asking for help or an answer?\n\nTake any 2 equations and multiply all of the terms or one or both by numbers that will make one of the terms in each equation have the same coefficient. Now subtract one from the other and the term will disappear. Now take the resulting equation and do the same with it against the third. Keep doing this until you are down to one term and solve for the variable. Now substitute the variable into the equation and solve for the other variables.
641742
Go to the site below.  It works great, you just put the colors where they belong and click solve, it gives you a step by step on how to solve it.
478350
Please see the answer above and find out the missing factor in your calculation. You are in the right track. All the best!
494549
Wellll, since the first one is an equality, you multiply the inner factors to equal the outer factors.  Then, you have to divide both sides by N in order to move N to the other side of the equation.  Then, you can solve for P:\n\nN x P = M x Q\nN x P / N = M x Q / N \nThe 2 N's on the left cancel each other out, so now you can solve for P\nP = (M x Q)/N\n\nAnd for the second one, it helps to remember you always do the multiplication and division portions before you do the additions and subtractions.  So, write it in that way and it'll be easier to solve.  Then, you have to add (B/M) to both sides of the equation to solve for Y (essentially, you're moving it from one side of the equation to the other):\n\nY - (B/M) = X\nY - (B/M) + (B/M) = X + (B/M)\nY = X + (B/M)
482020
You need to give some directions.  What is the problem asking you to do?\nNote: The person below is incorrect.  (4+3x)^5 does NOT equal\n4^5 + (3x)^5
620475
Use a calculator and raise it to the 1/3 power.\nDon't try to do it by hand...
456088
HOLY SH*T..........it works......i did it three times.......i dont know how they did it......\n\nand i came up with a different number and i different symbol every time...
370130
You figure the square root of each number separately...you've probably learned that in class alredy (how to do that)...then you take reach result, and multiply them together for your final answer.\n\nUse your textbook for reference...good luck!