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## Answers by Bill N.

Pauline, this word problem tells you that the glacier recedes or melts at the rate of 350 ft each day.  It is melting at this rate for two consecutive weeks, which is a total of 14 days.   So, if the glacier recedes at 350 ft per day for 14 days, then we have the following equation...

As I read the problem it appears to me that the total for the five cups was \$4.98.  I would think the problem would read "...bought 5 cups for \$4.98 EACH" if the price of the cups was to multiplied by 4.98 for each of the cups.  I think you'd be safe if you added the costs...

The key to finding the correct answer is looking what the choices have or do not have in common.  A, B, and C all are land based plants therefore have a root system and therefore root hairs.  Hydrilla is a totally submerged water based plant.  Now consider if water based plants...

One thing that might interest you is the birds did not really "attack" in that sense of the word.  For the mass bird attacks the movie makers tossed bits of fish on a beach and filmed the sea gulls flocking to it.  This flock was superimposed behind the actors to look like...

how to set up (answer)

let x equal the number you are looking for. The second number the instructions say there is a difference of 5 between these tow numbers and when you add them together you get 21   So x= one number   and x-5 = second number   now, add these together to get 21   so   (x+x)-5=...

An animal that is both an herbivore (plant eater) and a carnivore (meat eater) would be one that eats "everything" so to speak, both plants and meat.  So the prefix that we put in front of "-vore" to indicate an animal that eats both plants and meat is...

There is actually a simpler way of doing this than resorting to two variables. Let x be your single variable (boys) and so x + 4 =  number of girls.    The equation will be- number of boys (x) + number of girls (x+4) equals 16   x...

Bullying can have tremendously delitrious effects on the workplace or any other enviroment for that matter to include school and home.  As mentioned by WilliamS it cost him his job and the 13 year girl her life.  On a broader scale it can stifle creativity, prevent unethical and even...

This quadratic equation can be solved in several ways.  One that to me seems the simplest is known as  FOILing the equation.  This method takes advantage of the distributuve property of math to solve an equation. Multiply together the first two knowns and variables in...

Transcribing DNA to RNA is the same principle as transcribing DNA to DNA.  There is one key difference however; when transcribing DNA to DNA the A (adenine) in the template pairs to a T (tyrosine) in the copy.  In the DNA to RNA trasnscription process changes s bit  that...

Do you mean the fifth government republic, which is the current governmental system of France, or the fifth branch of government which is really theoretical.  If you could provide a little more information I'm sure we could inundate with anything you'd like to know. Bill N.

As you stated the formula of a rectangle is P (perimeter) = 2W (the two widths added together) + 2L (the two lengths added together). To solve this algebraicly you need to define your variable, or unknown, which in this case is the width or "W". Now set this same...

An absolute number is how far a number is from zero on a number line.  If a number is five to the right of zero the absolute value is five.  If it is five to the left of zero it is still five. The indication the absolute value of a number is indicated by lxl.  So the absolute value...

An ion is an atom or molecule that is positively or negatively charged due to the loss or gain of an electron.  In order for an atom to be neutral the number of electron orbiting the nucleus must match the number of protons in the nucleus.  If these don't...

To solve this equation, and it is an equation because we have an equal sign, we use what is know as the distributive property.  In other words we will "distribute" the -5 across all the numbers in parenthesis.  This makes sure every number is treated equally, no number...

What we have is known as a binomial expression.  It's called an "expression" because there is no equal sign.  If there was it would be called an equation.  But for now we'll just solve the expression part. There is a couple of ways of doing this.  We can do it by...

\$8.49 : 5% (answer)

If you have a regular price of \$8.49 with a 5% discount what you need to do is find out what 5% of 8.49 is.  This is a simple ratio of 5/100=x (the disount amount)/8.49. So cross multiply and you get 5 x 8.49=100x Simplify algebraicly and you get a final answer of .4245.  Round...