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Answers by Kyle M.

Let's call the year 2000 population x, which then increased by 74% to 104,400 by the year 2010. Write this as an equation:   x + (x * 0.74) = 104,400   Now, solve for x:   1.74x = 104,400 [combine like terms - 1x + 0.74x = 1.74x] x = 104,400/1.74...

Remember that the sum of the three angles of a triangle is always 180 degrees. Also, that the measure of a right angle is always 90 degrees. Therefore, as possessing a right angle is the defining characteristic of a right triangle, we already know the measures of two angles:   90 deg...

Consider that word, "estimate." It means we do not expect our results to be absolutely true or trustworthy - only that they are the most correct results possible under the given circumstances. In this circumstance, we have a "biased" coin - meaning that the coin doesn't land...

I understand how these can be confusing, and will share some ideas to help you. First, try & decide what it is that the question is asking - what answer are we looking for? Then look for other variables that play into that answer. I'm essentially asking you to look at the problem backward. Let...

Remember, "range" refers not to a single number, but to a set of numbers, from lowest to highest. If Karen's & Anna's measurements had some percentage of error, that error could be lower or higher than the correct measurement (notice the words "at most"). You should assume...

Word Problem (answer)

Hello, Brenna! I would set this up as an algebraic equation with one variable.   Both boys paid the same amount, but Larry paid an additional $2.30. The amount that both boys paid equally will be the variable, and, since there are two of them, the coefficient will be 2:   19...

There are some unclear aspects to this scenario that make it difficult to assist you, but I will try to interpret the meaning by making some reasonable assumptions. For example, When talking about costs of doing business, we assume that "unit cost" refers to how much the business pays...

Word problem (answer)

We first make a variable out of the unknown quantity: the weight of the largest fish caught in lake B. Let's call it B.   The scenario says the largest fish caught in lake A is "334.2 pounds less than eight times" our variable B:   8B-334.2=645   Now,...