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A negative x a negative?
A negative times a negative is a positive. A simple way to remember this is... n * p = n p* n = n p * p = p n * n = p There will always be two negatives, and two positives.
How do you make x the subject of m equals n plus (x over p)?
If: m = n+x/p then x = p(m-n)
What is the formula for a simple compound interest rate?
Simple Interest = p * i * n p is principle and i is interest rate per period and n is the number of periods. A = P(1 + r)n is for compound interest.
What are the rules for adding numbers whose signs are different?
Positive plus positive is positive. Negative plus negative is negative. Positive plus negative is positive if the absolute value of the positive number is greater than the absolute value of the negative one. Positive plus negative is negative if the absolute value of the negative number is greater than the absolute value of the positive one.
How do you solve For the variable R in PV equals nRT?
P V = n R TDivide each side by ( n T ):(P V) / (n T) = R
