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Maths Puzzle
Numerical Ability
When the vaule b is less than 8 a is negative. please explain this answer.
a=1/2b-4 show work, thanks need help
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book Other Question
Two cars leave town at the same time and heading in the same direction. The first car travels 45mph and the second car travels 53mph. In how many hours will the second car be 30 miles ahead of the first?
use the elimination method to solve the system of linear equations
x+4y=16
3x+5y=20
x+y=3
-3x+2y=-19
Use the subtraction method to solve the syst