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Minchanka [31]
3 years ago
14

9.)Find the value of x. A.) 75 B.) 70 C.) 60 D.) 80

Mathematics
2 answers:
Nikitich [7]3 years ago
4 0
I think it's A but I'm not 100% sure
nikdorinn [45]3 years ago
3 0
C.) 60 because if you add 30 to 30 it is 60
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Answer:

Alex is reading faster by 5 more pages per hour.

Step-by-step explanation:

Alex's rate of reading is 1/2 pages per minute, or 1 page every 2 minutes. To convert his rate to pages per hour, we can divide 60 (minutes in an hour) by 2 (minutes it takes Alex to read a page) which is equal to 30 (pages read in an hour). Therefore, Alex is reading at 30 pages an hour and reading 5 more pages an hour than Sammie.

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2 years ago
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3 years ago
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sweet-ann [11.9K]

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6 0
3 years ago
Solve by substitution x-y=12 x+y=18
slamgirl [31]
X = y + 12. You then substitute or plug in that from the first equation into the second equation. You get (y+12)+y=18, then you simplify to get your y value. In this case y = 3. The you can plug your y value into either equation. (x+3=18) or (x-3=12) or (x=3+12) either way you get x=15 and y=3.
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3 years ago
Please help me on this!
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