9x-84=4x-18
5x=66
x=13.2
your number is 13.2
Answer:
D is equivalent to the expression.
Step-by-step explanation:
The expression that is given equals 2.8, or 2.8x.
A. This expression equals 1.6x, and 1.6x is not equivalent to 2.8x
B. 0.3x + 3.1 = 3.4x. This doesn't have the answer of 2.8x.
C. 1.3 - 0.3x = 1 or x.
D. 3.1 - 0.3x = 2.8x. D is the answer.
Answer:
The length of the side of the original garden is 5 m.
Step-by-step explanation:
Let the original side of the garden be x.
SInce we are given that the side is incresed by 7 m.
So, the new side = x+7
Formula of area of square =
Where x is the side length of square .
So, area of garden after increasing the length of side by 7 =
Since we are given that the new total area of the garden will be
⇒
⇒
⇒
⇒
⇒
Thus the length of the side of the original garden is 5 m.
Answer:
It might be 6
Step-by-step explanation: