Question

PLEASE TEACH ME HOW TO DO IT!

If on a scale drawing 5 inches represents 80 feet, then 3/4 inch would represent how many feet?

16 feet
12 feet
8 feet
4 feet

Answer 1

@UnkleRhaukus @hartnn help? show me how to do it!

Answer 2

\(5 <-->8\)
\(3/4 <-->x\)
just cross-multiply or take the ratio.
\(5 \times x=8 \times 3/4\)

Answer 3

because when things are scaled, the ratio of new measurements to old measurement, remains the same.

Answer 4

that's a proportion right?

Answer 5

yes, and i meant 80, not 8

Answer 6

answer 12 feet

Answer 7

lol thanks!

Answer 8

you got it \(\huge \checkmark\)

Answer 9

:DDDDDDD

Answer 10

\[ \begin{array}l\color{red}{\text{w}}\color{orange}{\text{e}}\color{#e6e600}{\text{l}}\color{green}{\text{c}}\color{blue}{\text{o}}\color{purple}{\text{m}}\color{purple}{\text{e}}\color{red}{\text{ }}\color{orange}{\text{^}}\color{#e6e600}{\text{_}}\color{green}{\text{^}}\color{blue}{\text{}}\end{array} \]

Answer 11

thanks!!!!