A local newspaper charges $14.50 for every three lines of a classified ad plus a 7% sales tax. What is the cost of a 7-line ad? Round to the nearest hundred
C = 7/3 * 14.50 =
Correction: 7/3 * 14.50 = $33.83
Cost = 33.83 + 0.07*33.83 =
To find the cost of a 7-line ad, we first need to determine the cost per line.
The newspaper charges $14.50 for every three lines. So, the cost per line is $14.50 / 3 = $4.83 (rounded to the nearest penny).
Now, we can calculate the cost of a 7-line ad. Since each line costs $4.83, the total cost of a 7-line ad is 7 * $4.83 = $33.81 (rounded to the nearest penny).
Next, we need to add the sales tax. The sales tax is 7% of the total cost. So, 7% of $33.81 is 0.07 * $33.81 = $2.37 (rounded to the nearest penny).
Finally, we add the sales tax to the total cost to get the final cost of a 7-line ad. $33.81 + $2.37 = $36.18 (rounded to the nearest penny).
Therefore, the cost of a 7-line ad is approximately $36 (rounded to the nearest hundred).
To find the cost of a 7-line ad, we first need to calculate the cost of a 3-line ad and then multiply it by 2 (since 7 lines is approximately 2 times 3 lines).
Step 1: Calculate the cost of a 3-line ad.
The newspaper charges $14.50 for every 3 lines of a classified ad. Therefore, the cost of a 3-line ad is $14.50.
Step 2: Calculate the cost of a 7-line ad.
Since 7 lines is approximately 2 times 3 lines, we multiply the cost of a 3-line ad by 2:
Cost of a 7-line ad = $14.50 * 2 = $29.00
Step 3: Add the sales tax.
The cost of the ad listed above does not include sales tax. We need to add sales tax to get the final cost. The sales tax is 7% of the cost of the ad. We can calculate it by multiplying the cost of the ad by 7% (or 0.07):
Sales tax = $29.00 * 0.07 = $2.03 (rounded to the nearest hundred)
Step 4: Calculate the final cost.
To get the final cost, we add the sales tax to the cost of the ad:
Final cost = Cost of the ad + Sales tax = $29.00 + $2.03 = $31.03
Therefore, the cost of a 7-line ad with sales tax included is approximately $31.00 (rounded to the nearest hundred).