12. 360-140=220 x+12=220 x=208
13. 360-8=352 x-47=352 x=399
14. 360-80=280 2x+10=280 x=135
15. 125-64=61 x=61
16. 167-88=79 x=79
The error Vincent made was that he only multiplied the left side of the inequality with 6 although he had to multiply on both sides
Step-by-step explanation:
Given inequality that the teacher wrote is:

Solving an inequality means that the variable should be isolated on left side of the inequality.
So multiplying both sides by 6

Vincent got the answer is x<-2 = > The error Vincent made was that he only multiplied the left side of the inequality with 6 although he had to multiply on both sides
Keywords: Inequality, solution
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Answer:
Step-by-step explanation:
Radius = diameter ÷ 2
Diameter = distance between C and D
<em><u>Find the distance using distance formula</u></em>
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48miles/hour means divide by 60 to get miles/minute (since there are 60 minutes in an hour).
So yes .8 miles/minute
After two minutes would be 1.6 miles
Perfect.