Kim is showing her steps to solve the expression −18.9 ÷ 1 over 4.
In which step did Kim make an error?
Step 1: −18.9 ÷ 1 over 4
Step 2: −18.9 ⋅ 4
Step 3: 75.6
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OpenStudy (anonymous):
step 1
step 2
step 3
or there is no error
OpenStudy (anonymous):
what do you think???
OpenStudy (igreen):
Is it \(\sf \dfrac{-18.9 \div 1}{4}\) or is it \(\sf -18.9 \div \dfrac{1}{4}\)
OpenStudy (igreen):
The 2nd one right? @alicelahey
OpenStudy (anonymous):
its the second step,
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OpenStudy (igreen):
No..it's not
OpenStudy (igreen):
In the second step, she flipped 1/4 and multiplied..which gave her \(\sf -18.9 \cdot 4\)
OpenStudy (anonymous):
I meant the second one you put.
OpenStudy (igreen):
Oh, okay..
OpenStudy (igreen):
What's -18 * 4?
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OpenStudy (igreen):
-18.9 * 4
OpenStudy (anonymous):
-75.6
OpenStudy (igreen):
Yes..so her problem was in Step 3, because she multiplied incorrectly.
OpenStudy (igreen):
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