The cruise control of Megan's truck is set at 65 miles per hour, but her actual speed may vary by as much as 5 miles per hour. Write an inequality that can be used to determine the actual speeds at which Megan could be traveling.

Question

johnweldon1993 · Answer

okay...so it is at 65 right? it cant go below 60...and it cant go above 70 correct? 

what would that look like?

anonymous · Answer

I have no idea man

johnweldon1993 · Answer

lol hint.....60 < 65

correct? this is saying....65 is greater than 60

65 < 70

this is saying 70 is greater than 65 right?

if you cannot exceed 70 mph...or fall below 60....your equation would look like

$$60 \le 65 \le 70$$

see why?

you cannot go above 70...but you CAN reach 70
you cannot go below 60...but you CAN reach 60

do you agree?

anonymous · Answer

the answer choices are: A. |s – 65| > 5
B. $$|s – 65| \ge 5  
C. |s – 65| < 5
D. |s + 65| \le 5$$

johnweldon1993 · Answer

ahh okay....so....s being speed

well you can use the same logic to think about it,..but the answer would be C

anonymous · Answer

thank you!!! :D

johnweldon1993 · Answer

no problem :)