Gruber's Math Problem help???

Test Preparation SAT Preparation
1

<p>I'm on page 93. 1-22 </p>

<p>Directions: Change the following to a fraction a/c^8. The gruber's answer key says the answer is 25/200 or 125/1000. </p>

<p>How did they get these answers?</p>

2

<p>And also change these to a fraction</p>

<p>66 and 2/3 answer 2/3
14 and 2/7 answer 1/7 </p>

<p>I don’t understand.</p>

3

<p>Post the whole question, so we know the whole story. Who knows what you are talking about?</p>

4

<p>This is the whole question. There are 15 problems and the directions are “Change the following to a fraction”. I don’t understand what else you need?</p>

5

<p>I meant you should copy the question as the book states, do not make your own comments or give anwers. May be you misses the context.</p>

6

<p>That’s how the book states the question…</p>

7

<p>

</p>

<p>Check if it does not ask </p>

<p>66 and 2/3 PERCENT
14 and 2/7 PERCENT </p>

<p>(66 2/3)/100 = 2/3 (Remember (66x3 + 2) = 200
(14 2/7)/100 = 1/7</p>

8

<p>Yes, it does ask percent. Does that mean those answers are right or wrong? </p>

<p>Xiggi, I still don’t understand how you got those answers.</p>

9

<p>Actually, I undestand the 66 2/3 one.</p>

10

<p>14 x 7 = 98</p>

<p>98/7 + 2/7 = 100/7 </p>

<p>In percent, it is 1/7 because 100/7 X 1/100 = 100/700 or 1/7.</p>

11

<p>Oh, I see. Thanks so much!</p>

12

<p>See you did miss the most important word “percent”. The original posts did not make sense at all.</p>

13

<p>Really Doctoradj? Then how did Xigii help me?</p>

14

<p>Some parts of the book seem to have errors. Is that the only error you’ve found so far? I’m on page 114 and I either found a couple more or are just solving these problems wrong. Like on Practice Exercise 1-22, where the directions state to change the following into a percent, for number 9 they give you the fraction 1/3 but the answer is given in the book is 33 1/8%. Oddly, this same error occurs on Practice Exercise 1-23 on number six, where they give you the percent 33 1/3 and tell you to change it into a fraction and decimal, but if you look at the answer key they change the number to 33 1/8 percent.</p>

15

<p>Because Xigi is a senior member of this board and possibly saw many people asked similar questions like yours. So he/she knew something missing there.</p>

16

<p>Well you also knew something was missing yet you couldn’t solve it. </p>

<p>I’ve found several errors in the answers section so far LastChance92. But as long as my score raises, then I’m fine with that! :)</p>