exam
Maths Puzzle
Numerical Ability
142=k-38
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exam Other Question
Could someone please help me solve this word problem I am not understanding how to solve it.
A ball is thrown upward from the roof of a building 100 m tall with an initial velocity of 20 m/s. When will the ball reach a height of 80 m?
substitution method
-x+3y=10
2x+8y=-6
I need help with this problem if anyone could help, I would appreciate it.
Thanks!