For breakfast, randy had two egg mcmuffins and a hash brown, totaling 750 calories. Jack only had one egg mcmuffin and a hash brown, totaling 450 calories. how many calories are in each item?

X = egg mcmuffin

y = hash brown

Randy: 2x + y = 750 2x + 450 - x = 750 x = 300

Jack: x + y = 450 y = 450 - x y = 450 - 300 y = 150

1 egg mcmuffin has 300 calories

1 hash brown has 150 calories

Use algebra/simultaneous equations for the easy way. Let's call Egg McMuffins 'e' and Hash Browns 'h'.

So 2e + h = 750

And e + h = 450

Subtract the bottom equation from the top one

e = 300

Substitute e back in to the bottom equation (Because it's simpler)

300 + h = 450

Simplify the equation, subtract 300 from each side

h = 150

So there you go. Egg McMuffins have 300 calories and Hash Browns have 150 calories