Answer:
The percent of decrease can be calculated with this formula:
(Original value - New Value)/(Original Value)
In this case, the original value is 117 and the new value is 91.
So the percent of decrease is 26/117, or about 22%.
Hope this helps!
Answer:
55%
Step-by-step explanation:
Since the perimeter of the square is 40, its side length is 40/4 = 10, so its area is 100.
To find the percentage of the shaded area, I am going to find the unshaded areas, which consist of 2 triangles.
The one on the left has lengths of 10(side length of the square) and 3(10-7), which means it has an area of 10*3/2 = 15.
The one on the right has lengths of 10(side length of the square) and 6(10-4), which means it has an area of 10*6/2 = 30.
That means the unshaded area is 15+30 = 45.
To find the shaded area, just subtract 45(unshaded area) from 100(area of square), which is 55 cm^2.
55 cm^2 is exactly 55% of 100, so the answer is 55%.
I hope this helped you.
Answer:
-3x+2
Step-by-step explanation:
5x+4−8x−2
=5x+4+−8x+−2
Combine Like Terms:
=5x+4+−8x+−2
=(5x+−8x)+(4+−2)
=−3x+2
Answer:
=−3x+2
-4.9=-5.7+0.8
-4.9=-4.9
Answer is C
Answer:
64.
Step-by-step explanation:
There are 8 digits in the list.
This will be the number of permutations of 2 from 8 plus the duplicate numbers 11, 22 etc.
So we have 8P2 + 8 possibilities.
= 8! / (8-2)! + 8
= 56 + 8
= 64.
