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
Move all terms that don't contain K to the right side and solve.
K= Z/3 + 3
Answer:
320
Step-by-step explanation:
distance=speed*time= 8 *40.
Answer:
equals 800
Step-by-step explanation:
10 x 10 x 8
you would multiply
