Annie tried to solve a problem step by step: 7.5 + k = 10 7.5 + k - 7.5 = 10 - 7.5 step 1 k = 2.5 step 2 Find Annie's mistake: A

Question

4 years ago

11

. Step 1 B. Step 2 C. Annie did not make a mistake

2 answers:

slavikrds [6] · Answer 1 · 2022-01-23T00:37:48+03:00

6 0

Answer:

C. Annie did not make a mistake

Step-by-step explanation:

Substitute 2.5 for k in the equation and see if it is correct

Each time you substitute you should see that Annie answered the equation correctly

Law Incorporation [45] · Answer 2 · 2022-01-22T23:34:11+03:00

5 0

Answer:

(C) Annie did not make a mistake

Step-by-step explanation:

To isolate the variable k in the equation $7.5 + k = 10$ , we'd have to subtract 7.5 from both sides so we just had k on one side.

This is exactly what Annie did, and therefore, her answer is correct.

Hope this helped!