Jenna wants to buy a concert ticket that costs $181, plus five drink tickets for $7 each. If Jenna earns $18 an hour and works 30 hours a week, what percentage of her monthly salary will she spend on this outing? Let's be accurate as possible.
First find the total cost of the drink tickets: 5 tickets * $7 / ticket = $35. Then add that cost to the cost of the ticket to find the total cost: $35 + $181 = $216. Then multiply Jenna's hourly rate by the number of hours she works each week to find her weekly earnings: $18 / hour * 30 hours / week = $540 / week. Then multiply her weekly earnings by the number of weeks she works each month: $540 / week * 4 weeks / month = $2160 / month. Then divide the cost of the concert by Jenna's monthly earnings and multiply by 100% to express the answer as a percentage: $216 / $2160 * 100% = 10%.
The answer: 10.