I had a quiz in math.
The problem is:
|4.3+(-7.2)|
I got the answer 11.5 and my teachr marked it wrong. When she gave us a chance to fix the errors for half credit, I tried it again. But I KEEP getting the same answer. What am I doing wrong?
abs( 4.3+(-7.2))
abs(4.3-7.2)
abs(-2.9)
2.9
You have to solve the absolute value first, then change the sign to the opposite.
So, it is 4.3 + -7.2 = -2.9
Then take the absolute value of -2.9
which is 2.9
good work, Muffy.
Oh!! You don't do the absolute value part until the end!! I get it now! I was changing it at the beginning!! THank you soo much!
Like.... You solve it and then change it to the opposite. It's hard to explain now, but Igot it! Thank you guys so much! You're life savers!
Thanks, getting something right gives me great confidence!
In order to verify if you are getting the correct answer for the absolute value problem |4.3+(-7.2)|, let's break down the steps to solve it correctly.
Step 1: Evaluate the expression inside the absolute value bars.
4.3 + (-7.2) = -2.9
Step 2: Take the absolute value of the result from step 1.
|-2.9| = 2.9
Based on these steps, the correct answer for the problem |4.3+(-7.2)| is 2.9, not 11.5. So, it seems that you are making a mistake in evaluating the expression inside the absolute value bars.
Double-check your calculations to see if you are correctly adding 4.3 and -7.2. Remember, adding a positive number and a negative number will result in a subtraction operation. Make sure to carefully apply the rules for adding and subtracting signed numbers.
If you are still having trouble getting the correct answer, consider seeking additional help from your teacher, a classmate, or a tutor. They may be able to assist you in identifying where the mistake is occurring and provide additional guidance to help you understand the concept better.