On a blueprint, the scale indicates that 7 cm represent 16 ft. What is the length of a room that is 9.8 cm long and 5 cm wide on

Question

3 years ago

9

the blueprint?

2 answers:

Ira Lisetskai [31] · Answer 1 · 2021-12-22T10:22:34+03:00

3 0

The room is 22.4 feet long

7cm=16ft
9.8cm=?ft

7cm 9.8cm
______=______
16ft x ft

Cross multiply
7x=156.8
divide both sides by 7
x=22.4 ft

Ksenya-84 [330] · Answer 2 · 2021-12-22T12:48:31+03:00

Answer:

The length of a room that is 9.8 cm long and 5 cm wide on the blueprint is:

22.4 ft. long and 11.43 ft. wide

Step-by-step explanation:

On a blueprint, the scale indicates that 7 cm represent 16 ft.

1 cm represents 16/7 ft.

9.8 cm represents

$\dfrac{16\times 9.8}{7}\\\\=22.4ft.$

5 cm represents

$\dfrac{16\times 5}{7}\\\\=11.43ft.$

Hence, the length of a room that is 9.8 cm long and 5 cm wide on the blueprint is:

22.4 ft. long and 11.43 ft. wide