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Maths Puzzle
Numerical Ability
1-- Over the weekend, Teddy biked 41 miles. On Sunday he rode 4 miles less
than 2/3 of his distance on Saturday. Find the number of miles he rode
each day.
2-- S
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book Other Question
To expand the logarithmic expression as much as possible:
In x^3/(x-3)^2
Solve:
log10 (x-30)= 3- log10 x
solve by substitution method
4x-3y=2
12x=6+9y
thanks very much for your help