This problem is a system of linear equations word problem. That means you have two variables that will appear in two linear equations, which will intersect in only one point to give you your answer to each variable. The hardest part of these problems is to recognize the variables and...
This problem sets up a relationship for you to use. It is basically saying that 60 feet is to 20 pounds/square inch as 150 feet is to x pounds/square inch. You could write them as ratios equal to each other: 60 feet:20 pounds/square inch = 150 feet:x pounds/square...
Is that supposed to be a square root or a v in front of the 110? Also, I think everyone here is perplexed at why there would be a X and a x. If a v is before 110 that confuses us also. Are you given any more information at all?
The expression can be simplified by combining like terms.
So, the expression would now read: 3m+8k.
If there is nothing else specified with this problem you are finished.
Set up the problem as follows:
R = the number of hours Ron Worked
number of hours Mary worked = (2R +3) (2R is twice the amount of hours that Ron worked, and add 3 to get 3 more hours, as stated in the problem.)
They worked together a total amount of 57 hours, so an equation...
The only other thing you need to know that I did not explain in your multiplication question is the way to divide fractions. Dividing fractions = multiplying fractions by flipping the numerator and denominator in the second fraction.
So, 18x7 - divided by 2x7y4 ...
First, simplify the expressions by factoring them out. For example, a2 + 7a + 6 becomes (a + 6) (a+1).
If you do this, the fraction then looks like this:
(a+6) (a+1) times (a +4) (a -2)