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RideAnS [48]
3 years ago
12

7. Which pair shows equivalent expressions? A. 3(x+2) = 3x + 6 B. 3x + 2x = x²(x + 2) C. 3x + 2 = 3(x + 2) D. -3(2 + x) = -6x -

3​
Mathematics
1 answer:
Sergio039 [100]3 years ago
8 0
C has equivalent expressions I think
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A copy machine makes 104 copies in 3 minutes and 15 seconds. how many copies does it make per minute
Gnesinka [82]

Answer:

<h2>32 copies</h2>

Step-by-step explanation:

First convert 3 minutes and 15 seconds into minutes by converting 15 sec to min and add it to 3min

60 sec = 1min

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Add it to 3min

3min + 0.25min = 3.25 min

<u>We use ratio and proportion</u>

3.25min = 104 copies

1 min = 104× 1/ 3.25

= 104 / 3.25

= 32

The final answer is 32 copies

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