Homework Help: math

Posted by dawn on Thursday, June 26, 2008 at 8:55pm.

the least common multiple of 3, 6,9 i say 18

Sheila practiced hours Monday, hours Tuesday, and hours Wednesday. What is the total number of hours that she practiced?

A) hours B) hours C) hours D) 6 hours

Complete the statement, using the symbol < or >.

0.6

A) > B) <

Jon spent of his study time doing math homework and preparing for a history exam. What fraction of his study time remains?

A) B) C) D)

math - Ms. Sue, Thursday, June 26, 2008 at 8:59pm
Your first answer is correct.

But, you seem to have left out important information in the other two questions.
math - dawn, Thursday, June 26, 2008 at 9:08pm
1 1/2 hours 3 3/4 2 1/4 the anwers you can chose from are
a. 7 1/2 hours
b. 5 1/4
c. 8 1/2 hours
d. 6 hours
- math - Ms. Sue, Thursday, June 26, 2008 at 9:14pm
  1 1/2 + 3 3/4 + 2 1/4 =
  1 2/4 + 3 3/4 + 2 1/4 = 6 6/4 = 7 1/2
math - dawn, Thursday, June 26, 2008 at 9:11pm
jon spent 1/3 of his time 2/7 preparing the following you can chose from A) 13/21 B) 5/21 C) 1/21 D) 8/21
math - Ms. Sue, Thursday, June 26, 2008 at 9:17pm
1/3 + 2/7 = 7/21 + 6/21 = 13/21

21/21 - 13/21 = ??

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