The cost of a movie ticket is $7. The cost is reduced to $5 for groups of 10 or more. How many people must be in a group for the
1 answer:
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Answer:
Error: not
Solution:x=0 and 3
Step-by-step explanation:
We have to find the error and correct answer
Given:
Using the formula
Therefore, x=0 and x=3
But last step in the given solution
It is wrong this property is used when
then
Hence, the student wrote instead of
and solution is given by
x=0 and x=3