D mi
The cheek cell in this image has been magnified 250 times.
The width of the cheek cell from point D to point E in this image was measured as 45mm.
Calculate the width of the actual cheek cell in micrometres (um).
(Make sure you show the equation you would use, how you calculate the answer and how
you convert the units.) *

Transcribed image text: Jenny and Pablo each ran every day as part of an exercise routine. Jenny ran 5 miles each day for x days. Pablo ran 6 miles each day for y days The total number of miles that Jenny ran is greater than the total number of miles that Pablo ran. Write an inequality describing this relationship

ok.

h

explanation:

before, trains worked using the steam engine. thus, it uses heat so it is crucial to apply heat balance. the steam engine absorbs energy during the stage of boiling water. so, this is the endothermic reaction. when the steam is used to work the piston, it has to release this energy through running the train. the excess energy is released as an exhaust to the chimney. this is the exothermic process because it releases energy to the surroundings.