Jane can complete a sales route by herself in 4 hours. Dave can do the same job in 7 hours. How long will it take them to do it
1 answer:
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Given:
The inequalities are:
a)
b)
To find:
The solution of inequalities by substituting the given values.
Solution:
a) We have,
After substituting the given values one by one, we get
False statement.
False statement.
True statement.
True statement.
Therefore the solutions of are
.
b)
We have,
After substituting the given values one by one, we get
True statement.
False statement.
False statement.
False statement.
Therefore, the solution of is
.
Answer:
Step-by-step explanation:
