exam
Maths Puzzle
Numerical Ability
3x+2y=5
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exam Other Question
help me solve the equation x+(x+2)+(x+4)= 54
A ball is thrown upward from the roof of a building 100 m tall with an initial velocity of 20 m/s. Use this information for exercises 35 to 38.
When will the ball reach a height of 80 m?