### Chapter 5: Algebra... Different "Faces" of Algebra (III)

The perimeter of a rectangle is (6x + 5y) cm.
Suggest 2 possible dimensions of the rectangle.

e.g.
Length of rectangle = 2x + 2y cm
Breadth of rectangle = x + 0.5y cm
Check:
Perimeter = 2 (2x + 2y) + 2 (x + 0.5y) cm
= 4x + 4y + 2x + y cm
= 6x + 5y cm

1. length = (2.5x + 1.5y)
perimeter= 2 (2.5x + 1.5y)+ 2 (0.5x + y)
= 6x + 5y
jefflee

1. Jeff: Why are you using Jerrold's account to submit your work?

2. The suggested dimensions look alright :)

2. Length of rectangle = 3x
Breadth of rectangle = 2.5y cm
Check:
Perimeter = 2 (3x) + 2 (2.5) cm
= 3x + 2.5y + 3x + 2.5y cm
= 6x + 5y cm

1. The suggested dimensions look alright :)

3. length:(1x+1y)cm
check:2(1x)+2(1.5y)
=6x+5y

1. The suggested dimensions look alright :)
However, there's some discrepancy in the checking part (line 3) - Pls check.

4. Length of rectangle = 3x cm
Breadth of rectangle = 2.5y cm
Check:
Perimeter = 2(3x) + 2(2.5y) cm
= (6x + 5y) cm

1. The suggested dimensions look alright :)

5. 1, length:(2x+1y)
breath:(x+1.5y)
check:2(2x+y)+2(X+1.5y)
=6x+2y+3y
=6x+5y

1. The suggested dimensions look alright :)

6. B=x+2.5y
L=2x
Perimeter=2(x+2.5y)+2(2x)
=2x+5y+4x
=(6x+5y)

1. The suggested dimensions look alright :)

7. Length of rectangle = 3x cm
Breadth of rectangle = (2/1/2)y cm
Check:
Perimeter = 2(3x)+(2/1/2)y cm
= 6x+5y cm
= 6x + 5y cm

1. The suggested dimensions look alright :)

Note: When keying into the blog and we have difficulty presenting fractions, you may key in 2.5 instead

8. Length of rectangle is 3x+1/2y
Check:
Perimeter=2(3x+1/2y)+2(2y)
6x+5y cm

1. The suggested dimensions look alright :)

9. Length of rectangle : 2(1.5)
Breath of rectangle : 5(0.5)
Check:
Perimeter : 2(2{1.5x}) + 2(5{0.5y}) = 6x+5y

1. You're expected to use the variables x and y to form the dimensions instead of using numbers.

10. Length of rectangle: 3x
Breath of rectangle: 2.5y
Check:
Perimeter:2(3x) t 2(2.5y) =6x t 5y

1. The suggested dimensions look alright :)
However, instead of using "t", you should use "+"