Thursday

March 5, 2015

March 5, 2015

Posted by **Malena** on Tuesday, February 1, 2011 at 8:55pm.

1/5 of the boys are absent and 2/5 of the girls are absent in Drew’s class. Bert thinks that you multiply, so his answer is 2/5 of the class are out. Elmo thinks that means 3/5 of the class is out. Ernie thinks 3/10 of the class is out. Kermit didn’t find out how much of the class are out, but he thinks the answer is between 1/5 and 2/5. Analyze each person’s answer to find out who is right. Then determine who knows the most math.

- math -
**Reiny**, Tuesday, February 1, 2011 at 9:10pmabsent: b/5 + 2g/5

= (b+2g)/5

fraction absent = (b+2g)/(5b+5g)

...going nowhere

take an example,

suppose there are 25 boys and 30 girls or 55 total

boys missing = 5

girls missing = 12

total missing = 17

fraction missing = 17/55

which is none of 2/5, 3/5, or 3/10

now 1/5 = 11/55

and 2/5 = 22/55

mmmh?

- math -
**Someone**, Thursday, March 17, 2011 at 4:06pmElmo is correct because 1/5+2/5=3/5.

**Answer this Question**

**Related Questions**

math - there are 13 boys and 14 girls in mrs greens class if 3 of the students ...

Math Help - Suppose that each student in stat. has a 9% chance of missing class...

Check answers please Statistics - Suppose that each student in stat. has a 9% ...

Math - Im trying to help my daughter with some math homework and Im stuck can ...

Algebra - Hi! Today I was absent from my algebra class, and they learned how to ...

math - In a class of 36 students, 13 were absent on Friday. What percent of the ...

3rd Grade Math - There are 25 students in Mrs. Roberts 3rd grade class. There ...

Statistics - A mathematics class has 200 members. If there is 12% absentee rate ...

Maths - A mathematics class has 200 members. If there is 12% absentee rate per ...

Math - Mrs.Smith's class has 12 girls and 8 boys. What percent of he class are ...