Posted by Anonymous on Friday, November 27, 2009 at 10:32pm.
15 is correct.
On an algebraic calculator which allows the use of parentheses, the expression
(3 + 2(8 + 5 • 2 ÷ 4) – 9)
should be entered as
3+2X(8+5X2÷4)-9=
where the first multiplication sign (X) is implicit in the given expression.
If your calculator is the older type that does not accept parentheses, you will have to break down the expression according to the priority of calculations and enter it as:
5X2÷4+8=X2+3-9=
This way, you should get 15 using both types of calculators.
In the future, if you post questions concerning results using calculators, it would help if you could include the make and model of the calculator you used.
Related Questions
math,correction - Can someone correct these for me plz... Problem#6 Factor. x(x-...
Math Inequalities - -9/8x greater than or equal to -1/16 can someone please ...
To:Writeacher - Thanks for your help! I have questions of subject math. What is ...
Math - Could you help me with this problem? -2 5 Sorry couldn't type the ...
math - Read the problem. Explain why A cannot be the correct answer choice. Then...
math - I need to prove my answer is correct, the directions say to simplify the ...
Math - I had posted this problem with you before and the answer given was 2b =A/...
math, correction,plz - can someone correct these for me plz.... Problem#36 Use ...
math - In my math book i got a question that said 1/7 times 1/7. I got answer of...
7th grade math - 5. Taylor completed the problem below. Describe and correct the...
For Further Reading
