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Vinil7 [7]
3 years ago
7

A painter took a digital photo of a 16-inch wide by 20-inch long painting to display on his website. The digital image is 2.5 in

ches long. What is the area of the image in square inches?
Mathematics
1 answer:
xxTIMURxx [149]3 years ago
7 0
The actual photo has an area of 16*20 inches, so 320 inches squared. The ratio between the digital and real photo is 16:20. On the other hand, the width to length of the digital photo is x:2.5. Cross multiply the two ratios and solve for x. 16/20*x/2.5 —> 20x = 40 —> x = 2. The width of the digital image is 2 inches, so multiplying the width times the length gives you a 5 inches squared area for the digital image. Answer: 5 in^2
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romanna [79]

Answer:

79×52=4,108

46×34=1,564

28×70=1,960

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62×45=2,790

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39×20=780

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3 years ago
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3 years ago
6. – 4y + 8x = 32 for y
MatroZZZ [7]

Answer:

The answer is: y=2x−8

Step-by-step explanation:

Step 1: Add -8x to both sides.

8x−4y+−8x=32+−8x

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Step 2: Divide both sides by -4.

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4 0
2 years ago
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Answer:

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Step-by-step explanation:

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Once that is done and you combine the parentheses you get:

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You get:

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