Errata

The text states "Isolate the variable by dividing both sides by 150" but it shows, correctly I might add, that both sides are divided by 230. So, the term actually reads 15/230 = P, not 15/150.

Note from the Author or Editor:
change the annotation at the bottom of the page to "Isolate the variable by dividing by 230"

The problem simplifies to: 2 + 3x -8y + 3y; the final answer is given as 3 + 3x -5y.
It should be : 2 + 3x -5y

the final question simplifies to 25y-16 +.5 -x. The final answer should be 25y-15.5-x.

While graphing the line corresponding to $245, the rise is above the graph line for $250 instead of beneath it.

Note from the Author or Editor:
Adjust the annotation for the line near $250 to just below instead of just above.

Ed starts with $24 not $12.

So these are wrong
"Cash = $161 a week times weeks + $12 he starts with"
"C=161t+12"
"y-intercept (0, 12)"

Same error on the following page.

Note from the Author or Editor:
p. 194
Top Equation should read cash = 16 a week times weeks (remove $12... and the notes pointing to it)
Second equation should read C =161t (remove the +12)

I think that the shading on the bottom inequality graph on this page is on the wrong side.

Note from the Author or Editor:
The shading on the bottom graph should be above the graph, not below.

On p. 273 where it says "Kathleen said that she bought twice as many dresses as shoes and got 6 things all together" it will be changed to say something like "there are a total of 6 bags, with 2 bags per dress and 1 bag per pair of shoes." That means that we'll keep the 2d + s =6 and then we still have parallel lines.

The binomial multiplication problem has a + sign between them (the same problem exists on the solutions page (304).

Note from the Author or Editor:
Remove the "+" sign between the two groups on the bottom left problem.

A minus sign has been lost in the working, with the error propagated to the following lines.

8x + 24x -16x = 2400 becomes 8x(1 + 3 + 2) = 2400

It should be 8x(1 + 3 - 2) = 2400.

Note from the Author or Editor:
change 8x(1 + 3 + 2) = 2400 to 8x(1 + 3 - 2) = 2400
change 8x(6) to 8x(2)
change 48x/48 to 16x/16
change 2400/48 to 2400/16
change x = 50 to x = 150

suspicious variable transformation
Grtzzz . . . Dimitri

Note from the Author or Editor:
need to change the equation to have p as the variable, not z. the first line should read p/3 - 5/3 = 5

Even though the equation as no solution, the answer "Up" should be circled.

Note from the Author or Editor:
Circle "up" on the last equation.

Deja Vu
Page 373 and 418
Wrong crossword
Look at page 420

Grtzzz . . Dimitri

Note from the Author or Editor:
Page 373 is fine.

The crossword on p. 418 and 420 are the same one, but the format is different. The answers were generated from a different grid than the question. They need to match! The .cwz files should have been uploaded, but Tracey can change them if needed.

-1(-d(m)) = (-7300+9(m)) closing parenthesis -1

Grtzz . . Dimitri

Note from the Author or Editor:
The line in question is missing the last parentheses. It should read

-1(-d(m)) = (-7300 + 9(m))-1

"The principle plus $4400 in interest" should be changed to "The principle plus $4800 in interest".

Note from the Author or Editor:
Change the annotation to be the following "Max will end up owing a total of 28,800... the principle plus $4800 in interest."

Answer should be 3 16/28 not 3 22/28 for 2 6/7 x 1 1/4

100 divided by 28 is 3 with remainder 16 not 22.

Note from the Author or Editor:
Change the 22 in the solution to 16 for the 2 6/7 x 1 1/4 problem.

The answer for 27/4 is given as 8 3/4 but should be 6 3/4.

Note from the Author or Editor:
The answer for 27/4 is given as 8 3/4 but should be 6 3/4.

The answer for 5^5 is given as

Note from the Author or Editor:
The answer for 5^5 is given as "3215" but should be "3125".