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Maths Puzzle
Numerical Ability
rational expression need help quick
a-8/a+7
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My homework problem is this:
X+3[2 5] [12 7]
[1 4] = [0 -8]
The numbers after the 3 are one matrix and the numbers after the equals sign is another matrix.
Would someone please help me with this?:
A grocer needs to mix cashews worth $6 per lb with peanuts worth $2 per lb to obtain 10 lbs of a mixture worth $3 per lb. How many lbs of