Question about Texas Instruments TI-15 Explorer Calculator

# Can't reset I'm tutoring a student. Noticed it gave the answer 90 divided by 2 = 40. Can seem to clear and rest this

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• Texas Instru... Master
• 8,073 Answers

Hello,
You reset it by pressing simultaneously and holding the two yellow keys on both side of the navigation keys.
Hope it helps.

Posted on Sep 07, 2009

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Posted on Jan 02, 2017

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## Related Questions:

3 Answers

### Of 400 students,180 are girls.what percent are girls

Hi Charles:
"percent" means "per hundred" (times 100).
180 girls
400 students
girls of total..........
180 divided by 400
percent (times 100)
On your calculator...........
clear
180
divided by
400 display 0.45
X
100
= answer displayed 45
So, 45% are girls
To check your answer, you can
clear
400
X
45%
Display will show 180
Ta Da!

Nov 14, 2015 | Office Equipment & Supplies

1 Answer

### Need help with an assignment for a college paper. need to specify why hypothetical students made the mistakes in division and what the mistakes are and what feedback could be given. the ex. are 2388...

It would seem to me that the answer was found at a grade 3 or 4 level

If you divide 288 by 4 you get 97. Then the 1 is carried to the 2 leaving 12. 12 divided be 4 is 3 leaving a result of 397.

Second one....

217 divided by 5 is 43.4 or 43 with a remainder of 2.

Leaving 5 divided by 5 equaling 1.

Combining the 1 with the 43 with a remainder of 2 bringing you a total of 143 r2

This as mentioned would be at a grade 3 or 4 calculation with no understanding of how to properly divide.

I hope this helps and gives you the "A" you're looking for.

All the best.

Sep 16, 2009 | Computers & Internet

1 Answer

### % problems

You need to divide by three and multiply by .01 which will give you the average percetage or you need to divide the total by each entry and get invidual percentages

Dec 02, 2008 | Microsoft Computers & Internet

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