Posted by **jen** on Saturday, May 26, 2012 at 12:16am.

if lisa studies for 9 hours and gets a score of 75. How long would she have to study to get a score of 94

- algebra -
**Steve**, Saturday, May 26, 2012 at 5:16am
assuming a linear relationship, we can say she gets a score of 75/9 for each hour she studies. So, if we let

94 = 75/9 * h

h = 11.28

so, if she studies 11.28 hours, she will get a 94.

Of course, there are lots of other ways to do this; the problem is woefully underspecified. Suppose she gets a score of 48 with no studying at all. Thus, she gets 3 points per hour for studying. She will thus need 34/3 = 11.33 hours to get a 94.

## Answer this Question

## Related Questions

- algebra - Lisa studies 8 hrs. for a particular test and gets a score of 78. at ...
- Math - Lisa studies for 7 hours for a particular test and got a score of 71, how...
- math - lisa studies 9 hrs. for a test and gets a score of 72. at this rate, how ...
- math - The sum of Lisa's and Jack's scores on there first algebra test is 6 less...
- statistics - Calculate the z-score for each set of data. Determine who did ...
- algebra - Which situation would most likely be represented by a negative ...
- programming - would someone be able to give me an idea of how to start coding ...
- Statistics - Some IQ scores are standardized with a mean of 100 and a standard ...
- Math_Statistics - Some IQ scores are standardized with a mean of 100 and a ...
- Math - Based on the information given for each of the following studies, decide ...

More Related Questions