Woodneeded=2334
woodbought=woodneeded
woodbought=number of trims sold times legnth of each
woodbought=x times 114mm
114x=2334
divide both sides by 114
x=20.4
the equation is 114x=2334
32.4*0.69=22.149
...
45=3*3*5, 63=3*3*7 The greatest common factor is the product of shared primes of the numbers prime factorization. In this case 3*3=9 is the product of shared primes so the greatest common factor is 9
For this problem, we are going to have to use our order of operations, which is: Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction (often abbreviated PEMDAS).
First, let's see if there are any parentheses. There is one set of parentheses which we will have to remove. To do this, we will simply multiply the -4 by the 6, given us a value of -24 to take the place of the -4(6). Now our problem is:
Next, we will check for exponents. There are exponents, so we will need to take care of those. 
is equal to 144, and 
is equal to 121. We can now substitute these values into the original expression to get:
Now, we will check for any multiplication or division. Besides the entire expression (which is a fraction), there is none, so we will move on to the next step: Addition and Subtraction. You can see there is addition and subtraction in the numerator. 
is equal to 120, and 
is equal to 121. Our problem is now:
Our answer is 1.
You would multiply the -7 by 3 to come up with -21/18.
Answer:
d + q = 50
0.10d + 0.25q = 7.30
Step-by-step explanation:
Since all of the 50 coins are dimes and quarters, we can write the equation:
d + q = 50, where d is the number of dimes and q is the number of quarters
Now, we know that dimes are 10 cents, or $0.10 and quarters are 25 cents, or $0.25. So, if we multiply 0.10 by d, we get the total value of the dimes, and if we multiply 0.25 by q, we get the total value of the quarters. The total value of all dimes and quarters is 7.30, so we have the equation:
0.10d + 0.25q = 7.30
Thus, the system is:
d + q = 50
0.10d + 0.25q = 7.30
