Answer:
-51
Step-by-step explanation:
Change some positives to negetives and simply add and subtract.
60t +60 = 80t
subtract 60t from both sides of=
20t = 60
t = 3
The two trains are the same distance from Chicago at 3pm, at that time both trains will have covered 240 miles
Answer: The <u>absolute value</u> of -6 is 6 because it is 6 units away from zero on <u>the number line</u>
In terms symbols, we use vertical bars like this
|-6| = 6
to represent absolute value. Absolute value is distance from zero on a number line. Negative distance is not possible.
If you use metric conversion (shown below), you will find that 9 meters = 90 cm. Tell me if you need further explanation.
1st one is true and second one false.