Problem solving

[AAA]

Hi can you help me with this problem?
Kara starts tying a baby quilt at the local community center. Each quilt takes 200 ties to complete. Ten minutes later Julie joins Kara, and both stay to finish the quilt. Kara ties 6 per minute and Julie can tie 11 per minute.

a. Write an expression to show the number of ties Kara has

 

[Dr.Peterson]

Hi can you help me with this problem?
Kara starts tying a baby quilt at the local community center. Each quilt takes 200 ties to complete. Ten minutes later Julie joins Kara, and both stay to finish the quilt. Kara ties 6 per minute and Julie can tie 11 per minute.

a. Write an expression to show the number of ties Kara has

I'm not even sure what it means. Did you possibly omit the end of the question?

I think it is probably asking how many ties Kara has tied, out of the 200 total, when they finish. Or, since this is part (a) of a problem, perhaps it is how many ties Kara has tied x minutes after she starts (or after Julie starts).

If my first guess is right, you might find how many she tied in the first 10 minutes, and then what fraction of the remaining ties she did. If the second is right, you'd use the rate equation.

But please show the entire question, including subsequent parts, so we can be sure where it is going.