exam
Maths Puzzle
Numerical Ability
1. In a certain cookie recipe, the ratio of flour to cups of sugar is 3 to 1. If the recipe uses 2 1/4 cups of flour, how much sugar does it use?
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exam Other Question
log(3)9
Evaluate:
Please, I need some help with these problems. If anyone can help please.
1. {4x+y=13
{2x-y=5
2. {2x+4y=6
{5x+10=15
3. {x+y-z=-1
{-4x-y+2z=-7
{2x-2y-5z=7