Answer:
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Step-by-step explanation:
18x + 20 + x = 10x -3
Combine like terms
19x + 20 = 10x -3
Subtract 20 to both sides because whatever you do on one side you have to do it on the other side:
19x = 10x -23
Subtract 10x
9x = -23
Divide 9 to isolate x:
x = -23/9
Simplify to get a mixed number:
x = -2 5/9
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74.5 minutes
Turn every fraction denominator to 60 since those are minutes
5. 14.5
- ×7.5= -----
8. 60
1/2 × 30= 30/60
2/5×12= 12/60
3/10×6= 18/60
Add all of the numerators together for the total number of minuted
