exam
Maths Puzzle
Numerical Ability
How do you do translations?
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exam Other Question
on a trip, palmer s. friedrich drove at a rate of 55 mph. he desided to return by a route that was 5 miles longer. his rate returning was 45 mph. if it took him 1 hour longer returning, how long was the second route?
I am having a hard time understanding the following equation;
(-2)(4)+5-6-[-2]
________________= ?
(-2)[9+(-5)]
What are the [] brackets used for in the equation? This is one equation.
thanks........