# Algebra

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If two planes leave the same airport at 1:00 PM, how many miles apart will they be at 3:00 PM if one travels directly north at 150 mph and the other travels directly west at 200 mph?

I understand that d = sqrt[300^2 + 400^2]
d = sqrt[250,000]
But im not sure how you get 500 from this point don't remember!! I used a calculator for [300^2 + 400^2] but not sure how to do the rest?

• Algebra -

just hit the √ key!

√250000 = 500

• Algebra -

Thank you been 8 years and trying to go back to school trying to re learn and or remember thanks a bunch!!!!

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