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alina1380 [7]
3 years ago
9

Please solve -5√x = -15

Mathematics
1 answer:
Sergeeva-Olga [200]3 years ago
8 0

Answer:

9

Step-by-step explanation:

- 5 \sqrt{x}  =  - 15 \\  \sqrt{x}  =  \frac{ - 15}{ - 5}  \\  \sqrt{x }  = 3 \\ x = 3 {}^{2}  \\ x = 9

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Answer: 5. The second box required more material to make.

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Step-by-step explanation:

5.  To solve this problem you need to find the volume of the boxes.

Volume of the first box.

v= 8 * 6.25 * 10.5

v= 525  

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9 * 5.5 * 11.75 = 581.625

Which means the second box required more material to make because it has the greatest volume.

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525 * 50 = 26250 * 0.03 = 785.5

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