He is incorrect because each number is in a different place and those different places are worth more or less than the other places
Additive inverses combine to get 0. So, k is -1.4. The sum is 0. Hopefully that will help.
There is no picture what do you mean
Let x represent the number of hamburgers sold, and (x - 55) represent the number of cheeseburgers sold.
Set up an equation:
hamburgers + cheeseburgers = total number of burgers
x + (x-55) = 445
solve for x:
2x - 55 = 445
2x = 445 + 55
2x = 500
x = 500÷2
x = 250
This means 250 hamburgers were sold on Tuesday.
Hope this helps!
-Jabba
5km = 5000 meters
450m+800m= 1250m
5000m-1250m= 3,750m
3 3/4 km