Pre calc 11 week 15

This week I learned how to use a distance, speed and time chart to turn word questions into equations. I learnt about how the three connect (D = ST, S = D/T, T = D/S). You have to plug in the appropriate variables and numbers in each box to create an equation and then use algebra to solve it.

Distance 

Speed 

Time

Plane

450

X

450/x 

Train

300

X + 2

300/x + 2

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