The question is incomplete, complete question is given below.
On the blue print for a house a rectangular balcony is 1 inch wide and 1.75 inches long . if the actual length of the balcony is 7 feet what is the perimeter of the balcony?
Answer:
The perimeter of the balcony is 22 feet.
Explanation:
Given,
Actual length = 7 feet
Solution,
In the blue print , length of balcony is 1.75 inches.
The actual length of balcony = 7 feet.
Here we use the unitary method to find out the actual measurement.
![\since\ 1.75\ inches = 7\ feet\\\therefore1\ inch = (7)/(1.75) = 4\ feet](https://img.qammunity.org/2020/formulas/mathematics/middle-school/uagg3id3hv9um14gu3w2nat9wgxnj0dka2.png)
Thus the scale is 1 inch = 4 feet.
On the blue print , the width of the balcony is 1 inch .
So, the actual width = 4 feet
Now,
On substituting the values, we get;
So, the perimeter of the balcony =
![2(7+4)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/4m3jttf2cc2pvbkhzawalm8e1we0y95xx6.png)
=
![2*11](https://img.qammunity.org/2020/formulas/mathematics/middle-school/f4ota0hfrejszugef64ekdmjbu0vyjkosf.png)
=
![22\ feet](https://img.qammunity.org/2020/formulas/mathematics/middle-school/54fms4i2oe9ynr1niyf4nypcz5rxh8lm10.png)
Thus the perimeter of the balcony is 22 feet.