Mathematics Questions

How many times would a coin have to show heads in 50 tosses to have an experimental probability of 20% more than the theoretical probability of getting heads?
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a store advertises that customers can take 25%off the original price and then take an extra 10%off is this 35% of? explain
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a ski shop has a markup rate of 50% find the selling price of skis that cost the store owner $300. tell me how you got the answer
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I need help with thisA DVD movie sells for $29 and the sales tax is 5.5%. What is the total cost of the movie to the nearest penny? Show your work to earn credit.
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a store purchased a DVD for $12.00 and sold it to a customer for 50% more than the purchase price. the customer was a 7% tax when the DVD was sold. what was the customer's total cost for the DVD
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a data set has a variance of 88.what is the standard deviation of the data set? round to the nearest tenth
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the number of red beads sheila has is four times as many as the number of green beads she has.there are 75 red and green beads.how many red beads does sheila have
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A recycle machine crushes 175 pounds of cans in 5 minutes. How many pounds of cans will the machine crush in 16 minutes?A) 560B) 955C) 1,925D) 2,805
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The millers drove 150 miles in 3 hours at what rate how long will it take them to drive 400 miles
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HELP!! Simon invested $1550 at 6.5% interest. He earned $302.25 interest at the end of t years. What is the value of t?
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George wants to put carpeting in a rectangular living room and a square bedroom. The length and width of the living room is 12 feet and 18 feet. One side of the square bedroom is 13 feet. It will cost $3.50 per square foot to carpet the rooms. A. Write an expression that can be used to find the total amount George will pay for carpeting. B. Evaluate the expression. How much will George pay for the carpeting?
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Javier drove 45 miles. This represents 60% of his entire trip. What is the total number of miles in Javier's trip?
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If x is not equal to 0 then u/x + 5u/x - u/5x = what?
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Ava is 23 cm taller than Olivia,and Olivia is half the height of Lucas. If Lucas is 1.78 m tall,how tall are Ava and Olivia? Express their heights in centimeters.
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Which ordered pairs are solutions to the equation? y = 3x + 1A.(6, 19) and (0, 0)B.(6, 18) and (0, 1)C.(6, 19) and (0, 1)D.(19, 6) and (0, 1)
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T times 3/4 for t = 8/9
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Tickets to the school play are $5.00 for adults and $3.50 for students. If the total value of all the tickets sold was $2517.50 and 100 more student bought tickets than adults, how many adults amd students bought tickets
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an item that costs $50 is marked 20% off. sales tax for the item is 8%. What is the final price, including tax
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