Ratios and Rates with Fractions

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Scale Drawing.

In real life, the Mona Lisa measures 2 ½ feet by 1 ¾ feet. A company that makes office supplies wants to print a scaled copy of the Mona Lisa on the cover of a notebook that measures 11 inches by 9 inches.

(1). What size should they use for the scaled copy of the Mona Lisa on the notebook cover?

(2). What is the scale factor from the real painting to its copy on the notebook cover?

(3). Did you use the same scale factor? If not, is one more reasonable than the other?

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More Scale Drawing.

(A). Draw a scaled copy of the circle below using a scale factor of 2.

(1). How does the circumference of the scaled copy compare to the circumference of the original circle?

(2). How does the area of the scaled copy compare to the area of the original circle?

(B). Answer the following questions.

Lin ran miles in of an hour, Noah ran miles in of an hour.

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Exercise on Ratio Problems.

Answer as many questions as you can.

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At a deli counter,

  • Someone bought pounds of ham for $14.50.​
  • Someone bought  pounds of turkey for $26.25.​
  • Someone bought  pounds of roasted beef for $5.50.

Explain how you know.

Explain how you know.

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Nothing can go faster than the speed of light, which is 299,792,458 meters per second.

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A cyclist rode 3.75 miles in 0.3 hours.