Okay, so for math we have this problem, and I honestly do not know what to do - help would be very much appreciated!
"Your car averages 25 miles per gallon. The actual mileage for city driving varies from the average by 4 miles per gallon, depending on the traffic conditions. Write an absolute value inequality that shows the range for mileage that your car gets in the city."
So I was thinking that it'd be like x is greater than or equal to 21, and less than or equal to 29, but that's not an inequality... please help? With an explanation too so that hopefully I can do the rest of these problems without needing to ask on Yahoo Answers
"Your car averages 25 miles per gallon. The actual mileage for city driving varies from the average by 4 miles per gallon, depending on the traffic conditions. Write an absolute value inequality that shows the range for mileage that your car gets in the city."
So I was thinking that it'd be like x is greater than or equal to 21, and less than or equal to 29, but that's not an inequality... please help? With an explanation too so that hopefully I can do the rest of these problems without needing to ask on Yahoo Answers
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you had 21≤x≤29 which is correct. you have given the solution to the absolute value inequality they're asking for, which is:
|x - 25| ≤ 4
this equation in words is, "the distance that x is from 25 is ≤ 4."
|x - 25| ≤ 4
this equation in words is, "the distance that x is from 25 is ≤ 4."