Let us set up some variables:
Now let us set up some equations based on the facts:
- length of rectangle is 4 times its width --> L = 4W
- perimeter of rectangle is 80 --> 2L + 2W = 80
Equations:
L = 4W -- equation 1
2L + 2W = 80 -- equation 2
Plug the value of L from equation 1 into equation 2
2(4W) + 2W = 80
8W + 2W = 80
10W = 80
W = 8 -- equation 3
Plug the value of W from equation 3 into equation 1:
L = 4W = 4 * 8 = 32
Therefore the length is 32 and the width is 8.
Hope that helps!
Answer:
A 48
D 0
O 7.5 (fraction form: 7 1/2)
E 21
Next line
E 34
N 36.8 (fraction form: 36 4/5)
L 9
T 8
Step-by-step explanation:
A (a)(c)
A (12)(4)
A 48
D 48 - (a + c)
D 48 - (12 + 4)
D 48 - 48
D 0
O (5a)/8
O 5(12)/8
O 60/8
O 7.5
E (ab)/c
E (12)(7)/(4)
E 84/4
E 21
Next line
E 2b + 5c
E 2(7) + 5(4)
E 14 + 20
E 34
N c(9.2)
N 4(9.2)
N 36.8
L 72/2c
L 72/2(4)
L 72/8
L 9
T (2/3)a
T (2/3)(12)
T 8
Answer:
7x-5
Step-by-step explanation:
Answer:
Each student gets 2 1/3
Step-by-step explanation:
So you would divide 7 by 3, which you can't...so 6 divided by 3 is 2, and when you split the last one into thirds you can each have 1/3. Add the sections together, and each person gets 2 1/3
