Answer:
I would hire Master remodeling. the cost for certified remodeling is 250 and the cost for master remodeling is 220
This is the concept of algebra, let the original length of the hexagon be x, after the dilation the length became x×7/5=7/5x
the perimeter of the original figure is:
6*x=6x
The perimeter of the enlarged on is:
6*7/5x=8.4x
therefore the perimeter of the new compared to the old will be:
8.4x/6x
=1.4
the new perimeter is 1.4 times the old perimeter
Since the order of the books chosen doesn't matter, we use the combination formula to find the number of possible selections. Recall that a combination of k items from a set of n items is given by
.
In this problem, n = 8 and k = 3. So the number of possible selections is
. Thus the answer is 56.
2 dimes 4 pennies
4 nickels 4 pennies
24 pennies
1 dime 2 nickels 4 pennies
19 pennies 1 nickel
14 pennies 1 dime
3 nickels 9 pennies
-78 since they are both negative you just add them
