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marshall27 [118]
3 years ago
12

An artist wants to scale down the surface area of an image by 20%. The image initially has a length of 22 ft. and a width of 22

ft. What is the width of the scaled down image? Round to the nearest hundredth.
17.08 ft.
17.89 ft.
18.78 ft.
19.68 ft.
Mathematics
2 answers:
garri49 [273]3 years ago
8 0

Answer:

  • D. 19.68 ft

Step-by-step explanation:

Area is the product of two dimensions.

If the scale factor is k, the ratio of areas is k².

<u>20% down means 0.8 times:</u>

  • k² = 0.8
  • k = √0.8 = 0.8944

<u>Now the width of the image is:</u>

  • 22*0.8944 = 19.68 ft (rounded)

Correct choice is D

arlik [135]3 years ago
5 0

Answer:

17.89 ft if I'm correct.....

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