Homework Help: Math - double check me

Posted by Kim on Friday, March 28, 2008 at 12:18pm.

Kristi joggfed for 3/5 of an hour, swam for 1/2 of an hour, and rode her bicycle for 3/4 of an hour. How long did she exercise?
a. 7/11
b. 9/40
c. 1 17/20
d. 1 7/20
answer: c
Juan owned 3/4 of a family business. He sold 1/3 of the business to his aunt. What portion of the business does he still own?
a. 13/12
b. 5/12
c. 5/13
d. 8/13
answer: b
Estimate the following product
2 1/5 * 4 5/6
a. 8
b. 10
c. 15
d. 18
answer: c

Math - double check me - Reiny, Friday, March 28, 2008 at 12:25pm
The first two are correct.

there has to be a misprint in the third, since according to your question you are appr. doing 1/5 * 5 which is 1
Math - double check me - bobpursley, Friday, March 28, 2008 at 12:27pm
The second and third are wrong. There is no correct answer for the second.

2/3 of 3/4 is 1/2
Math - double check me - Ms. Sue, Friday, March 28, 2008 at 12:28pm
I believe the problem in the third one is:

2 1/5 * 4 5/6

C is not the correct answer.
- I was wrong - Reiny, Friday, March 28, 2008 at 12:31pm
  Ms. Sue read it correctly, I don't know how I missed that 2
  
  so it would be appr. 2*5 which would be 10
  - I was wrong - Kim, Friday, March 28, 2008 at 12:37pm
    the correct answer: B

Answer this Question

Related Questions

math - Kristi jogged for 3/5 of an hour, swam for1/2 an hour, and rode her ...
math/fractions - Ok one more question. I had this problem: Kristi jogged for 3/5...
math - please check and see if my answers are correct if not let me know so i ...
math115 - Kristi jogged for 1/4 of an hour swam for 2/3 of an hour and rode her ...
Math - Joseph rode his bicycle for 10 miles. Then he increased his speed to an ...
math - please check these 1.kristi jogged for 3/5 of an hour, swam 1/2 of an ...
Mathematics - Michelle rode her bicycle from her house to her school at an ...
math - in a bike race, ramit and keith started at the same time abd rode with ...
Pre-Algebra - Courtnytravels south on her bicycle riding 8 miles per hour. One ...
college algebra - Solve the problem. A man rode a bicycle for 12 miles and then ...

For Further Reading

First Name:
School Subject:
Answer: