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3 years ago

8

Help Please!! I will give brainliest!

2 answers:

quester [9]3 years ago

6 0

If you take the total height and divide it by the number of cases it, it will then give you the heigh of just one case.
90 divided by 6=15
It’s 15 millimeters per DVD case. Then you take 15 and multiply it by 13 to get the total height of the stack of 13 cases.
Hope this helps!

finlep [7]3 years ago

4 0

Answer:

15 mm per case is the answer. The full answer is 195 mm.

Step-by-step explanation:

hope this helps:)

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Alexandra [31]

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WILL MARK BRAINLIEST IF ANSWERED CORRECTLY (SHOW YOUR WORK)

damaskus [11]

Answer:

One solution -> x = 35 , y = -25

Step-by-step explanation:

Solve the following system:

{14 x + 7 y = 315 | (equation 1)

16 x - 2 y = 610 | (equation 2)

Swap equation 1 with equation 2:

{16 x - 2 y = 610 | (equation 1)

14 x + 7 y = 315 | (equation 2)

Subtract 7/8 × (equation 1) from equation 2:

{16 x - 2 y = 610 | (equation 1)

0 x+(35 y)/4 = (-875)/4 | (equation 2)

Divide equation 1 by 2:

{8 x - y = 305 | (equation 1)

0 x+(35 y)/4 = -875/4 | (equation 2)

Multiply equation 2 by 4/35:

{8 x - y = 305 | (equation 1)

0 x+y = -25 | (equation 2)

Add equation 2 to equation 1:

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0 x+y = -25 | (equation 2)

Divide equation 1 by 8:

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3 years ago

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Step-by-step explanation:

I used desmos but you can also use an equation. I'm sure you're teacher taught you how.

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Step-by-step explanation:

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Here

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