Theme: Percent Equations...
  • How do I find the percentage of 18/20
  • A video game is on sale for 25 percent off the original price is $42. what is the discount? and what is the sale price?
  • A candidate for mayor wants to know how strong her support is among voters, so she posts an online survey on her campaign website for voters to take. Is this sample of voters likely to be biased or unbiased? A. biased B. unbiased To determine whether voters would be willing to vote for a tax increase to improve the city’s schools, the board of education surveys 500 parents of children in the city’s schools. Why is this sample likely to be biased? A. The entire population of the city was not surveyed. B. Parents of school children are too busy to be bothered with surveys. C. There are not enough people in the sample. D. Parents of school children are more likely to be willing to pay more to improve schools. In a bin containing 500 marbles, 180 are red, 240 are blue, and 80 are green. In a bowl of 25 marbles scooped from this bin, how many would be expected to be green? A. 4 B. 8 C. 9 D. 12 A battery manufacturer randomly tests 500 batteries and finds that 3 are defective. How many defective batteries would be expected in a shipment of 12,000 batteries? A. 120 B. 72 C. 60 D. 36 A large bin of mixed nuts contains peanuts, cashews, almonds, and walnuts. Sheila scoops out a bowl full of nuts and counts how many of each type she has: 17 peanuts, 9 cashews, 12 almonds, and 10 walnuts. Armando scoops out a bowl of 32 nuts. About how many should he expect to be cashews? A. 5 B. 6 C. 9 D. 18
  • What is the percent markup if the wholesale price is $25 and the retail is $35.
  • Can she buy enough packs?
  • 16 is what percent of 64
  • After the game the coach bought 9 chicken meals for $5 each and 15 burger meals for $6 each. What percent of the total amount the coach spent was used for the chicken meals?
  • If a store credit account charges 1.5% interest each month, what is the APR?
  • For an average adult the surface area of the skin is about 19,000 square cm and the thickness of the skin ranges from about 0.5mm to 4mm. To put this in perspective, this page has anapproximate area of 630sq cm. How many A4 pages would cover an average adult?
  • A jump suit costs 125 dollars. The rate of the discount is 20 percent. What is the discount
  • Suppose your pick points of random from A, B, C and D shown below. Find the probability that the number of points given meets the condition stated. 62. 2 points, collinear...
  • Raina deposits $2000 into an account that pays simple interest at a rate of 4% per year. How much interest will she be paid in the first 4 years?
  • Jimmy was studying populations in his history class. The class consisted of 16 girls and 13 boys. What percent more girls are there in the class than boys?
  • 35 is what percent of 200?
  • 50% of cakes were party cakes 1/5 were fruit cakes and remainder were sponge cakes what % were sponge cakes"
  • A product is currently priced at $10. If it is discounted by 10%, the profit margin will be 10%. What is the cost of the product?
  • You purchase a total of 45 shares of stocks from 3 different companies. You purchase twice as many shares of company c stock as you do company a. Company a stock sells for $15, company B sells for $12, and company C sells for $18. A) define a single variable and write an equation for the total cost of the stockB) if you bought 10 shares of company A stock, what was the costC) Six months later the value of company A’s stock increased 25%, and company C’s decreased 10%. Write a new equation to express the value of the stock now. D) what is the percent of increase or decrease in the value of your purchase from part b?
  • Jerry is experimenting with chemicals in the laboratory. He mixes a solution that is 10% acid with a solution that is 30% acid. How much of the 10% acid solution will be needed to make 40 liters of a solution that is 25% acid?
  • I am working percentages increases and decreases with problems like From 24 pencils to 30 pencils (increase question) or From 20 miles to 11 miles ( decrease question) How can I check my answers of percentages to make sure they work?
  • Find the discount if a $69.99 item is on sale for $39.99.
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