Keiko = K
Sister = S
three-fourths of his sister's sales = (3/4)S or (3S)/4 or
3 less than that is our answer:
K = <span>
- 3</span>
Answer:
The four pieces cut off can be arranged into two squares with sides of length b feet and hence the area of the octagon is w 2 - 2 b 2 square feet. Since w = 12 feet, all that is needed is to find b. square feet which is approximately 119 square feet.
Step-by-step explanation:
Answer:
1. 5/4
2. 7
Step-by-step explanation:
1) Lets call the width as w
Therefore length would be:
w+4
To find the perimeter you use the formula:
2 (l+w)
Now substitute our values into this formula:
2 (w+4+w)
2( 2w+4)
4w+8
Now make this equal to 13:
4w +8 = 13
4w = 5
w = 5/4
2. In this question we will call length l
Therefore width would be:
l-5
Now we will do the steps we did above:
2 (l+l-5)
2 (2l-5)
4l -10
4l - 10 = 18
4l = 28
l = 7
Answer:
3 1/10 or 31/10
Step-by-step explanation:
The on is in the tenths place making the fraction out of ten.
Answer:
C
Step-by-step explanation:
In arithmetic series
we have
Thus, the value of the series is equal to the value of the 24th number in the series.