Mathematics

Fifty pro-football rookies were rated on a scale of 1 to 5, based on performance at a training camp as well as on past performance. A ranking of 1 indicated a poor prospect whereas a ranking of 5 indicated an excellent prospect. The following frequency distribution was constructed. Rating 1 2 3 4 5Frequency 3 7 16 21 3 How many of the rookies received a rating of 4 or better? Number of Rookies?
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A family ordered some candy bars and bags of chips for snacking. The number of candy bars was twice as much as the number of bags of chips. If the family spent a total of $5.50, how many bags of chips did the family buy?
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After traveling 345 miles, theJohnston family stopped at arest stop for lunch. Looking atthe map, they realized they hadcompleted of the trip. If drepresents the total distance inmiles, which equation can beused to find d ?
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: Kara works at a fine jewelry store and earns commission on her total sales for the week. Her weekly paycheck was in the amount of $6,500, including her salary of $1,000. Her sales for the week totaled $25,000. Express her rate of commission as a percent. Round to the nearest whole number.
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Solve for y. y + 1.05 = 7.26 y = -6.21 y = -8.31 y = 6.21 y = 8.31
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A motorcyclist heading east through a small Iowa town accelerates after he passes a signpost at x=0 marking the city limits. His acceleration is constant (4.0 m/s2). At time t =0 he is 5 m east of the signpost and has a velocity of 15 m/s. (a) find his position and velocity at time t=2 sec. (b) where is the motor cyclist when his velocity is 25 m/s?
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Suppose a pizza is removed from an oven at 400F into a kitchen whose temperature is a constant 76F. Three minutes later the temperature of the pizza is found to be 267F. (Round your answers to two decimal places.)(a) What is the temperature T(t) of the pizza after 5 minutes?T(5) = (b) Determine the time when the temperature of the pizza is 150F. min(c) After a very long period of time, what is the approximate temperature of the pizza? F
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What is the area of the triangle below
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The acute angle between intersecting lines that do not cross at right angles is the same as the angle determined by vectors normal to the lines or by the vectors parallel to the lines. Also, note that the vector ai + bj is perpendicular to the line ax + by = c Find the acute angles between the lines: x + 3y = 1 and (1 - 3)x + (1 + 3)y = 8 Thank you!
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What is 0.00072 written in scientific notation
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A vertical wheel with a string around it
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Mark buys 6 notebooks for $9.Steven buys 4 notebooks of the same time for $6.Which of the following points is not on the graph of the relationship between notebooks and price?Please help as soon as you canAnswer Choices:F(3,4.50)G(8,12)H(7,10.50)J(12,16)
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xavier sells homemade necklaces for a profit of $22 per necklace. he is considering switching to a new type of pendant that will increase his profit, as expressed by the function y=29x, where x is the number sold and y is the amount of profit. how many more dollars will xavier earn on each necklace if he switches to the new material?
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If 1 1/4 kg sugar cost 2.25, find the cost of 3 1/4 kg of sugar
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Please answer this sample space question.
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solve the equation (3x+10)+81=0
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a right rectangel prism has a height of 6.5cm a wudth of 8 cm and a legnth of 12.1 cm. what is the volume of the prism?
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A platinum nugget weighs 3 1/2 ounces. How many 1/4 ounces prices can be cut from nugget?
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what is seven tenths of 180?
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Q. Youre in charge of filling out the office supply purchase orders for your company. If you need 20,000 sheets of paper, and one ream of paper equals 500 sheets, where will you get the best deal?
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What is log 81 base 3
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x - y - 2z = 4-x + 3y - z = 8-2x - y - 4z = -1The point is a solution to the system shown.
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A town's population has been growing linearly. In 2003, the population was 64000, and the population has been growing by 2200 people each year. Write an equation for the population x years after 2003.
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if the current batch of pills is the first of the day and your goal is to produce a total of 600 what percentage of your goal will you meet after the batch is finished
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