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Aleksandr-060686 [28]

3 years ago

10

In the scale used on a blueprint, 14 inch represents 3 feet. On the blueprint, what is the length of a room with an actual lengt

h of 24 feet?

1 answer:

ivolga24 [154]3 years ago

5 0

Blue Print : Actual
14 inches : 3 feet

<em>[24 ÷ 3 = 8, the factor is 8]</em>

14 x 8 inches : 3 x 8 feet
112 inches : 24 feet

Ans: 112 inches

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$\implies {\blue {\boxed {\boxed {\purple {\sf { f(-9)= 0.48}}}}}}$

$\large\mathfrak{{\pmb{\underline{\orange{Step-by-step\:explanation}}{\orange{:}}}}}$

$f(x) = \frac{2x + 3}{4x + 5} \\$

For $f(-9)$ , put " $-9$ " for every value of " $x$ ".

$↬f( - 9) = \frac{2( - 9) + 3}{4( - 9) + 5}\\$

$↬ f(-9) = \frac{ - 18 + 3}{ - 36 + 5} \\$

$↬ f(-9) = \frac{ - 15}{ - 31}\\$

$↬ f(-9)= \frac{15}{31}\\$

$↬f(-9)= 0.48\\$

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