6. A two-story building measures 21 feet from
the ground. A scale model shows the building
to be 3 inches tall. How many inches would an
84-foot building be in the model?

Question

02-12-2021
Mathematics

Answered

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6. A two-story building measures 21 feet from
the ground. A scale model shows the building
to be 3 inches tall. How many inches would an
84-foot building be in the model?

Sagot :

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Lunojayidn Lunojayidn · Answer 1 · 2021-12-02T22:28:24-05:00

Answer:

12 inches

Step-by-step explanation:

To solve you have to set up a ratio. Because both buildings are being shrunk the exact same amount, you just have to account for the size difference from the miniature and real life. The ratio is 21:3 and 84:x. To find x you just have to cross multiply and solve.

The equation comes out to be 252 = 21x

Divide both sides by 21 to get x.

252/21 = 12

The size of the 84 foot building as a model is 12 inches.

Sagot :

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