exam
Maths Puzzle
Numerical Ability
simplify:
3 square root b^2 divided by 4 square root b^3
a. 1 over 12 square root b
b. 12 square root b^5
c. 7 square root b^5
d. 12 square root b
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exam Other Question
Ok just one more:
As part of a conservation effort for a lake, 40 fish are caught, tagged, and then released. Later 80 fish are caught. Four of the 80 fish are found to have tags. Estimate the number of fish in the lake.
Thank You
Solve the pairs of equations using the substitution method:
problem#6. x=1-y
y=x-9
problem#7. 2x-y=0
3x-2y=-3