1) a fitness club advertises a special for new members. each month of membership cost $19, with an initial enrollment fee of $75.00. write an expression for the total cost. Then evaluate your expression for 8 months of membership
i wrote:
$75.00 + 19m = ?
$75.00 + 19(8)= $227.00
is that right?
2) a cellular telphone company charges $40 per month plus $35.00 activation fee. Write an expression for the total cost. Then evaluate your expression for 10 months of service.
i wrote:
$35.00 + $40(s) =
$35.00 + $40(10) = $435.00 for ten months
is that right?
yes both are right
1) Yes, you're correct! To calculate the total cost of the fitness club membership, you need to add the initial enrollment fee of $75.00 to the monthly cost of $19 multiplied by the number of months (m). So the correct expression for the total cost is $75.00 + 19m.
To evaluate the expression for 8 months of membership, substitute m = 8 into the expression and perform the calculation:
Total cost = $75.00 + 19(8) = $75.00 + 152 = $227.00
Therefore, the total cost for 8 months of membership is indeed $227.00.
2) Again, your approach is correct! The total cost for the cellular telephone company service consists of the activation fee of $35.00 plus a monthly charge of $40 multiplied by the number of months (s). So the correct expression for the total cost is $35.00 + $40(s).
To find the total cost for 10 months of service, substitute s = 10 into the expression and perform the calculation:
Total cost = $35.00 + $40(10) = $35.00 + $400 = $435.00
Hence, the total cost for 10 months of service is indeed $435.00.