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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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never [62]
The correct answer is 112 centimeters

Hope this helped :)
4 0
3 years ago
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Whoever answers these 6 area of composite shapes will get brainliest.
german

Answer:

  1. <u>80 mi²</u>
  2. <u>63 in²</u>
  3. <u>32 m²</u>
  4. <u>44 cm²</u>
  5. <u>59.5 ft²</u>
  6. <u>48 km²</u>

Step-by-step explanation:

<u>Q1</u>

  • 8 x 4 + 12 x 4
  • 32 + 48
  • <u>80 mi²</u>

<u>Q2</u>

  • 5 x 3 + 12 x 4
  • 15 + 48
  • <u>63 in²</u>

<u>Q3</u>

  • 4 x 2 + 8 x 3
  • 8 + 24
  • <u>32 m²</u>

<u>Q4</u>

  • 10 x 4 + 2 x 2
  • 40 + 4
  • <u>44 cm²</u>

<u>Q5</u>

  • 5 x 2 + 11 x 4.5
  • 10 + 49.5
  • <u>59.5 ft²</u>

<u>Q6</u>

  • 3 x 1 + 9 x 5
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5 0
1 year ago
How did you compute sums of dollar amounts that were not whole numbers? For example, how did you compute the sum of$5.89 and$1.4
nignag [31]

Answer:

$7.34

Step-by-step explanation:

To compute sum of dollars that are not whole numbers. Using the sum of$5.89 and$1.45 as an illustration :

$5.89 + $1.45

Taking the whole numbers first:

$5 + $1 = $6

Take the sum of the decimals :

$0.89 + $0.45 = $1.34

Sum initial whole + whole of sum of decimal

$6 + $1 = $7

Remaining decimal : $1.34 - $1 = $0.34

$7 + $0.34 = $7.34

4 0
3 years ago
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natali 33 [55]

Answer:

0.64285714285

Step-by-step explanation:

8 + 6 = 14

9/14 = 0.64285714285

0.64285714285 * 14 = 9

Please vote Brainliest (:



4 0
3 years ago
Simplify 19 - 1.67 + (2.4)
natali 33 [55]
The answer is 19.73 because 19 minus 1.67 is 17.33 and 17.33 plus 2.4 is 19.73
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2 years ago
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