Saturday

September 20, 2014

September 20, 2014

Posted by **Anonymous** on Friday, November 27, 2009 at 10:32pm.

what is the correct answer to this problem

I got 59 when i entered it on my sci-calculator

But my friend got a different answer

of 15

- math -
**MathMate**, Saturday, November 28, 2009 at 8:39am15 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+2**X**(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.

**Answer this Question**

**Related Questions**

Math - What is 3.0801^9? I have done it on a calculator and I got 24950.7354056...

Math - Can someone tell me how they got the answer. Problem: 9^(x+6)=7x My ...

Great News!!! :) (for teachers!!!) - GOT A 102 ON FACS SPELLING TEST GOT 100 ON...

computer science - I need to write a program that ask the student to enter an ...

Design Logic and programming - write a program that ask the student to enter an ...

math - belinda used her calculator to find the decimal for the fraction 21/28....

math - belinda used her calculator to find the decimal for the fraction 21/28. ...

Calculus - In increasing order, rank: 3^ln 2, 2^3, 2^ln 3 *do not use a ...

Math - Use a calculator to simplify the expression. 8/2^3-2+4.1*2 When I used ...

chem - Will someone help me with this problem, please? Calculate the mass in ...