Posted by Lilly on Sunday, November 14, 2010 at 6:32pm.
1. 19 is what percent of 40
a. 19=n x 40;47.5%
b. 40=19 x n;2.1%
c. 40=19 x n;40.4%
d. 19=n x 40;52.3%
is it a?
2.64 is 80% of what?
a.64 x n=80; 0.8
b.0.64 x n=80; 125
c.60= 0.80 x n;80
d.80=64 x n;1.3
is it c?

math correct or not?  Jen, Sunday, November 14, 2010 at 6:35pm
Yes for both. Good job.

math correct or not?  Bridgett, Sunday, November 14, 2010 at 6:35pm
yes they are both correct the way you have them.

math correct or not?  drwls, Sunday, November 14, 2010 at 6:41pm
1a is correct.
0.8*n = 64
n = 80
You wrote the problem wrong in 2c. 60 should be 64