exam Maths Puzzle Numerical Ability

Solve Proportions: 9/-15 = -27/P
My question is: If just the demonitor or just the numerator is a negative number does this make the entire fraction negative?

Thank you for your help,
Brooke

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exam Other Question

There are 850 Douglas fir and ponderosa pine trees in a section of forest bought by Sawz Logging Co. The company paid an average of $300 for each Douglas $217,500 for the trees, how many of each kind did the company buy? 2(x - 3) - 3(x + 5)= 3(x - 2)- 7