When you're looking for the changes between the two, it is best to simply look for the differences. In this case, the first equation has a positive 4 included, whereas, the second doesn't. When you've got a positive number, you always subtract it away from the otherside, as you always do the opposite to what the operation is.This is the equation solved.
Hope this helps :)
Answer:
yes they do because 15x7448 is 1.5 in is 2.52
Answer:
The perimeter of a rectangle is equal to 2L + 2W, where L = the length of the rectangle and W = the width of the rectangle. So, one equation is
2L + 2W = 60
From the info given in the problem, we also know that L = 4W. Therefore, we can use the Substitution Method to re-write the first equation as:
4W + 2W = 60
You should be able to solve this equation for W. Once you find W, you can then calculate L.
Step-by-step explanation:
Depends how many blocks one story takes up. If you have it multiply it by 20.