Answer:
The first four terms in the sequence 57, 50, 43, and 36
Step-by-step explanation:
Put the numbers in place of x (or n in this case).
You subtract that number you put in place of n by 1.
You then distribute the difference of n and 1.
You then subtract the distributed number by 57
1. The formula for calculate the perimeter of a rectangle, is:
P=2L+2W
P is the perimeter of the rectangle (P=320 feet).
L is the lenght of the rectangle.
W is the width of the rectangle.
<span>
2. The problem says that the length of the rectangle is three times the width, so you have:
</span>
L=3W
3. When you substitute L=3W and P=320, into P=2L+2W, you obtain:
P=2L+2W
320=2(3W)+2W
320=6W+2W
8W=320
W=320/8
W=40 feet
4. The barn forms one end of the rectangle. Therefore the linear feet of fence (x) is:
x=P-W
x=320 feet-40 feet
x=280 feet
<span>
How many linear feet of fence must he buy?
</span>
The answer is: 280 feet
We are finding the mean. 6+6+9+10+11 / 5 = 8.4
First....we need to do inverse operation
Subtract 7 from both sides.
2x+7=1
-7 -7
2x=-6
Now, we need to divide 2 by both sides to isolate x.
2x=-6
2x/2=-6/2
x=-3
Our final answer is that x= -3
Answer:
An assumption can be made that 70% of 25000 passengers will check one item of luggage
Step-by-step explanation:
