Answer:
The dimensions of the vegetable patch is 8 m by 7 m.
Explanation:
Area of a vegetable patch is 56 square meters and the perimeter is 30 m.
If l is length and b is breadth, then area and perimeter of a rectangle is given by :
![A=l* b](https://img.qammunity.org/2021/formulas/mathematics/college/70eeok9vfihydmld6l1qeg17oo5cxk2g3b.png)
![P=2(l+b)](https://img.qammunity.org/2021/formulas/mathematics/high-school/qiv1yfapbkz7r4140npbt2avcno561nxao.png)
Substituting the values in the above formulas as :
![l* b=56\ ....(1)](https://img.qammunity.org/2021/formulas/mathematics/college/fpkf2ma93bg5bljocmqv0v8j1fcxj9ryfe.png)
and
![2(l+b)=30\\\\l+b=15\ .....(2)](https://img.qammunity.org/2021/formulas/mathematics/college/3ledez3x7up99oax09co291bz1aipsrj6r.png)
We need to solve equation (1) and (2) to find the values of l and b such that :
Equation (2), l = 15 - b
Equation (1) becomes,
![(15-b)b=56\\\\b=7\ m, 8\ m](https://img.qammunity.org/2021/formulas/mathematics/college/8o779ki5pzsdi6v2xumsye67wpscbklmgc.png)
If b = 7 m, so, l = 8 m
If b = 8 m, l = 7 m
So, the dimensions of the vegetable patch is 8 m by 7 m.