Ken solved the linear equation 2(5y - 1) = 18 using the following steps. Step 1: 2(5y - 1) = 18 Step 2: 10y - 1 = 18 Step 3: 10y = 19 Step 4: y = 1.9 Which statement is true about Ken's method? A. Ken

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Cbartosiak asked Jul 24, 2022

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36 votes

Ken solved the linear equation 2(5y - 1) = 18 using the following steps.

Step 1: 2(5y - 1) = 18
Step 2: 10y - 1 = 18
Step 3: 10y = 19
Step 4: y = 1.9

Which statement is true about Ken's method?

A. Ken made a mistake between Steps 1 and 2.
B. Ken made a mistake between Steps 2 and 3.
C. Ken made a mistake between Steps 3 and 4
D. Ken solved the equation correctly.

Mathematics
college

Cbartosiak asked Jul 24, 2022

by Cbartosiak

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1 Answer

11 votes

Answer:

Explanation:

in step 1, when expanding the bracket, ken needed to do 2×5y AS WELL as 2×-1 which they didn't do. the correct answer after the first step should be 10y-2=18

TheStrangeQuark answered Jul 31, 2022