Elleanna is planning is join a DVD club and is investigating the options for membership.Option 1 is a $20 memership fee and $1.2
5 rental change for each DVD rented.Option 2 has no rental fee and changes $2.50 for each DVD rented. How many DVDs would elleanna have to rent in order for the total cost of option 1 to be equal to option 2?
1 answer:
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Explanation: The base of the power in the original equation becomes the base of the log. So we have . Next, the exponent in the original equation goes on the other side of the equation and finally, the result in the original equation goes inside the log.
So we have
=
which is 2³ = 8 written in logarithmic form.
Answer:
40
Step-by-step explanation:
This is essentially just (4/3), or . (4/3)*30 = 40, so our answer must be 40. Just to check, taking 75 percent of 40, we indeed get 30!