Combining like terms on the left-hand side gives us Adding 10 to both sides gives
and dividing both sides by 5 gives our answer of
Over the last three evenings Lucy received a total of 122 phone calls at the call center. The first evening she received 10 fewe
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ANSWER
EXPLANATION
We were given that
varies directly as
We can write this mathematically as,
This implies that,
where k is the constant of variation.
This implies that,
The equation becomes
When
EXPLANATION
We were given that
varies directly as
We can write this mathematically as,
This implies that,
where k is the constant of variation.
This implies that,
The equation becomes
When