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December 21, 2014

December 21, 2014

Posted by **linda** on Tuesday, March 27, 2007 at 9:04am.

would this be written as

0.36+0.21(x-1)<$3.00

0.36+(0.21(x)+0.21(-1))<3.00

0.36+(0.21x-0.21)<3.00

0.21x+0.15<3.00

0.21x<-0.15+3.00

0.21x<2.85

0.21x/0.21<2.85/0.21

x<2.85/0.21

x<2.85/0.21

x<13.57

to check i did this

0.36+0.21(13.57-1)<3.00

0.36+0.21(12.57)<3.00

0.36+2.639<3.00

0.36+2.64<3.00

3.00=3.00

aim i correct on this if i am not please tell me where i need look at to fix this

Your math is correct but the answer has to be 13 minutes, since the extra 0.57 minutes, or even 0.01 minute, would be billed as a full minute, making the bill 3.01

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