Let the shortest side = X and the longer = 4X
perimeter = (length + width) ×2
30 = (4X + X)×2
30 = 8X + 2X
30 = 10X divide 10 to both sides
3 = X
the longer side = 4X = 4 × 3 = 12 cm
the shortest side = X = 3 cm
area = length × width
area = 3×12 = 36 cm^2
do you understand ?
Answer:
4
Step-by-step explanation:
Answer:
12x+180=4f
Step-by-step explanation:
Answer:
Like terms have the same variable at the end. For example, 2x and 3x where x is the common variable. You can do order of operations with like terms.
Step-by-step explanation:
4 tens is equal to 40
2 ones is equal to 2
so the number is 42