IF A SUBSCRIPTION IS $499 PLUS 8% TAX FOR 30 DAYS, BUT IS BEING PRORATED FOR 7 DAYS, PLUS THERE IS A $10 OFF COUPON, WHAT'S THE
2 answers:
Answer:
$519.6048
Step-by-step explanation:
Cost of subscription is $499 + 8% tax for 30 days
Cost of subscription for 30 days = $499
Cost of subscription for 1 days =
So, Cost for (30-7 = 23)days =
=
Cost of subscription for 23 days =
Sale tax = 8 %
Sales Tax =
Cost of subscription = $499+$30.6048 = $529.6048
There is an off of $10
So, Final cost = $529.6048-$10= $519.6048
Hence The final cost is $519.6048
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Step 1: Read and understand the problem statement.
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You are given (time, depth) pairs of (20 s, 8 cm) and (40 s, 0 cm) and asked to write an equation that describes the relationship of depth (y) to time (x).
The rate of change is (0 cm -8 cm)/(40 s -20 s) = -8 cm/(20 s) = -2/5 cm/s. Then in point-slope form using the second point, the linear function rule is
y = (-2/5)(x -40) +0
You can expand this to
y = (-2/5)x +16
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If you have a slope (which is before the x) then it’s a linear equation
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