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Step-by-step explanation:
1) X+12
2) 2x-5
3) 40-x
4) (x1/3)(12)
5) x0.25
6) 2x:4y
7) 12(x-1)
8) 3[(x)(-8)]
9) 7(2x+3)
10) (x-30)+(y-30)
Answer:
12. n = 8
13. t = 308
14. k = 5
Step-by-step explanation:
12. 2/3 = n/12
Multiply by 4 because 3×4 = 12
So, n = 8
13. 33/t = 3/28
Multiply by 11 because 3×11 = 33
So, t = 308
14. k/6 = 15/18
Multiply by 3 because 6×3 = 18
So, 3k = 15. k = 5
What i would do is is 800 divieded by 100 that gives you how many per 1
in this case it is 8 the times the percentage for an example
8 X 35 = 280 now you do the other half
