Percent Decrease/Increase
Godwin has his car professionally washed and wants to leave a tip of 15%. Write an equation Godwin can use to calculate tip, y, for a bill of x dollars.
y = 0.15 x
What is the formula to find a percent decrease or increase?
Once you find the markup amount, how can you find the new total?
Once you find the markdown amount, how can you find the new total?
(new - original) divided by original
Markup - Add
Markdown - subtract
What is the formula for Simple Interest and what do the variables stand for?
I= P R T
I - Interest
P - Principal
R - Rate
T - Time
Suzanne buys upgrades for her computer. The upgrades cost $311.60 before taxes. The sales tax rate is 6.75%. What is the amount of sales tax Suzanne will pay?
$21.03
If I need to find a person's total earnings for the year and you are given their base salary in months, commission rate, and how much they sold, how can you do that?
First, you need to find their salary for the year by multiplying by 12 to find their yearly salary.
Then, you need to calculate how much she earned through commissions by multiplying how much they sold by the commission rate.
Then you add their yearly salary with their salary for how much they earned for the year.
The Shoe Stop is having a sale on sneakers. The original price for a pair of high-top sneakers was $135. The sale price for the sneakers is $94.50. What is the percent decrease in the price of the sneakers?
30%
The millers receive a dinner bill for $122.75. The sales tax rate is 8%. They want to leave an 18% tip on the total bill after tax. How much money will they pay for their dinner with tax and tip?
$156.43
What is the percent decrease of the following?
1) 150 to 117
2) 340 to 255
3) 450 to 351
1) 22%
2) 25%
3) 22%
y = 1.68x
Morgan purchases a new car for $24,000 and finances it with a 5-year simple interest loan at a rate of 3.75%. What are Morgan's monthly car payments?
$475
During a closeout sale, some television models are discounted 40%. What was the original price to the nearest dollar of a television that now costs $1,485?
$2,475
Darius is a broker who earns a $68,000 annual salary, a 3.15% commission on his client's investments, and a fee of $4.25 for each online transaction. If Darius's clients had a total of $3.6 million in investments and made 1,375 online transactions this year, what are Darius's earnings rounded to the nearest dollar?
$187,244
Hot Chocolate is made with milk warmed to 172 degrees with an error tolerance of 6%. What is the acceptable temperature range for milk when making hot chocolate?
161.68 degrees to 182.32 degrees
Ella buys candles in bulk for her store. Her cost for each candle is $9. She marks up the cost of the candles 85% to sell them. What is the retail price per candle?
$16.65
A fitness club hold an open house for new members. THe club expects 6,500 people to sign up for the gym membership. If there is a percent error of 4%, what is the range of the number of people who will sign up for the gym membership?
Least number: 6,240
Greatest number: 6,760
Tomas is a commercial real estate agent who earns a yearly salary of $82,500 and a 2.5% commission on his total sales. If Tomas sold properties that totaled $3.75 million in sales during one year, what are Tomas's earnings for that year?
$176,250
Cruz deposits $3,000 in a savings account earning 4.25% simple interest per year.
1) How much interest will Cruz earn for a period of 5 years?
2) How much money will be in Cruz's account for 5 years?
1) $637.50
2) $3,637.50
The school band is having its end of the year dinner at a local restaurant. The director wants to give the server 20% gratuity, and the sales tax is 8.25%. He will use the amount of the bill to find each additional amount.
1) Which components will the director use to write an equation to determine the total cost of the meal, given the amount of the bill, x?
a. x + 0.20
b. x
c. 0.825x
d. 0.20x
e. x + 0.825
f. 0.0825
2) By what percent does the cost of the meal increase with tax and gratuity?
1) b, d, e
2) 28.25%