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kow [346]
3 years ago
8

Need help with math quarterly please

Mathematics
2 answers:
Readme [11.4K]3 years ago
7 0

Answer:

c=40

Step-by-step explanation:

a + c=65 equation 1

7a+4c=335 equation 2

c=65-a isolate c from equation 1

7a+4(65-a)=335

7a+260-4a=335

3a=75

a=25

solve for c

a+c=65

25+c=65

c=40

check answer:

7a+4c=335

7(25)+4(40)=335

175+160=335

335=335

lesya [120]3 years ago
4 0
Put a more clearer picture can’t see men
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Answer:

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Step-by-step explanation:

A) We are told that the aspect ratio of the phone screen = 16:9. This means that the ratio of the length to the width of the screen is 16:9.

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Thus;

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x = √(16129/337)

x = 6.9

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width = 9x = 9 × 6.9 = 62.1 mm

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A = 110.4 × 62.1

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C) We are told that the aspect ratio is now 18.5:9.

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x = √(16129/423.25)

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