Taisha uses the elliptical cross-trainer at the gym. Her general goal is to burn 280 calories per workout, but she varies by as much as 25 calories from this amount on any given day. Write and solve an equation to find the maximum and minimum number of Calories Taisha burns on the cross-trainer.

Answer 1

It would be similar to the thermometer problem:
http://www.jiskha.com/display.cgi?id=1346371286

Take the goal and add or subtract the variations to get the upper and lower limits.

Try it and post your answer for a check if you wish.

Answer 2

jdls

Answer 3

305 and 255