The perimeter of a square: P = 4s.
The equation:
4s = 12x + 52 |:4
s = 3x + 13
Answer:
2826 inches^2
Step-by-step explanation:
The general formula for the total surface area of a regular pyramid is
T.S.A.=12pl+B
Where p represents the perimeter of the base, l the slant height and B the area of the base.
The perimeter of the base is.
p=2L+2W
P=2*10+2*9
P=20+18
P= 38 inches
The area of the base is.
B=10*9
B=90in^2
T.S.A.=12(38)(6)+90
T.S.A=2736+90
T.S.A=2826 inches^2
Hence the paper needed is 2826 inches^2
In this case we can propose a rule of three:
$ 18 ---------------> 100%
x --------------------> 25%
Where x represents the discount made to the pillow:
So we have the new price (with the discount) is:
In addition, if 25% is discounted we have to, the price of the pillow is 75% of the original price. That is to say:
Answer:
Option A
Option D
You would first subtract 3a^4 from 8a^4
8a^4-3a^4=5a^4, since you can subtract numbers that are like terms.
Same with 5d and 3d
5d-3d=2d
Then you would put the answers together.
5a^4+2d
So the answer is 5a^4+2d
Time = distance/speed
time = 9.6/6
time = 1.6 hrs
