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MATH SOLVE
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Reuben bought a desktop computer and a laptop computer. Before finance charges, the laptop cost $300 less than the desktop. He paid for the computers using two different financing plans. For the desktop the interest rate was 6% per year, and for the laptop it was 7% per year. The total finance charges for one year were $252. How much did each computer cost before finance charges?
General
2 months ago
£65 of candy was divided into 4 different boxes the 2nd Box contained twice the amount of the 1st Box the 3rd Box contained a to more pounds than the 1st Box the last Box contain 1/4 the amount in the 2nd Box how much candy was in each Box
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2 months ago
A student on the cross-country team runs 30 minutes a day as a part of her training,Write an equation to describe the relationship between the distance she runs in miles, D, and herrunning speed, in miles per hour, when she runs:(Unit 2. Lesson 2)a.at a constant speed of 4 miles per hour for the entire 30 minutesb.at a constant speed of 5 miles per hour the first 20 minutes, and then at 4 miles per hour thelast 10 minutesat a constant speed of 6 miles per hour the first 15 minutes, and then at 5.5 miles per hour forthe remaining 15 minutesd. at a constant speed of a miles per hour the first 6 minutes, and then at 6.5 miles per hour forthe remaining 24 minutese. at a constant speed of 5.4 miles per hour form minutes, and then at b miles per hour fornminutes
General
2 months ago
Mary takes a sightseeing tour on a helicopter that can fly 450 miles against a 35 mph headwind. In the same amount of time it can travel 702 miles with a 35 mph tailwind. Find the speed of the helicopter.
General
2 months ago
pls help me, cause I don't understand one bit of it at all
General
2 months ago
Rewrite the radical expression as an expression with a rational exponent. the seventh root of x to the third power Options:A: x to the three sevenths powerB: x to the seven thirds powerC: x21 D: x4
General
2 months ago
Two groups of people visited an amusement park. A group of8 children and 4 adults paid $856 for their tickets. A different grouof 2 children and 4 adults paid $508. What was the cost of a ticketfor an adult?
General
2 months ago
a=8 , b=13, c=13 solve the triangle
General
2 months ago
What is a possible step when solving for x? Select all that apply. 512x+23x=37helpppp
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2 months ago
A jet travels 6588 miles against a jetstream in 9 hours and 7938 miles with the jetstream in the same amount of time. What is the rate of the jet in still air and what is the rate of the jetstream?
General
2 months ago
5. [12 points] Minor surgery on horses under field conditions requires a reliable short-term anesthetic producing good muscle relaxation, minimal cardiovascular and respiratory changes, and a quick, smooth recovery with minimal aftereffects so that horses can be left unattended. A research article reports that, for a sample of 73 horses to which ketamine was administered under certain conditions, the sample average lying-down time was 18.9 minutes. Does this data suggest that the true mean lying-down time is less than 20 minutes? Assume that lying-down time varies according to a normal distribution with population standard deviation 8.6 minutes. Test using the level of significance α = 0.10.
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2 months ago
A coed little league team had 18 players . Even though it was raining half the girls and one third of the boys showed up for the game , but theses 7 players went home when the game was canceled. How many girls were on the team?
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2 months ago
The length of a rectangle is 1 ft less than twice the width, the area of the rectangle is 21 ft squared. What’s the length
General
2 months ago
Which expression is represented by the diagram?0 -6-(-4)0 -8-40 - 10-4-10-(-41Mark this and returnSave and ExitNext
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2 months ago
A television sports commentator wants to estimate the proportion of citizens who "follow professional football." Complete parts (a) through (c). What sample size should be obtained if he wants to be within 4 percentage points with 96% confidence if he uses an estimate of 48% obtained from a poll? What sample size should be obtained if he wants to be within 4 percentage points with 96% confidence if he does not use any prior estimates? Why are the results from parts (a) and (b) so close?
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2 months ago
The Physics Club sells E = mc2 T-shirts at the local flea market. Unfortunately, the club's previous administration has been losing money for years, so you decide to do an analysis of the sales. A quadratic regression based on old sales data reveals the following demand equation for the T-shirts: q = −2p2 + 30p (9 ≤ p ≤ 15). Here, p is the price the club charges per T-shirt, and q is the number it can sell each day at the flea market. (a) Obtain a formula for the price elasticity of demand for E = mc2 T-shirts.(b) Compute the elasticity of demand if the price is set at $9 per shirt. (Round your answer to two decimal places.) Interpret the result. (c) How much should the Physics Club charge for the T-shirts to obtain the maximum daily revenue? What will the revenue be?
General
2 months ago
A frozen food company uses a machine that packages okra in six ounce portions. A sample of 54 packages of okra has a variance of 0.44. Construct the 98% confidence interval to estimate the variance of the weights of the packages prepared by the machine. Round your answers to two decimal places. Lower endpoint and Upper endpoint
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2 months ago
Researchers are interested in the effect of a certain nutrient on the growth rate of plant seeding. Use a hydroponics grow procedure that utilized water containing the nutrient, they planted 6 tomato plants and recorded the heights of each plant 14 days after germination. those heights were 54.2, 59.8, 61.8, 63.3, 65.1, 71.4Use technology, find the 95% confidence interval for the population mean.use technology, construct a 99% confidence interval.
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2 months ago
Andres boards a Ferris wheel at the 3-o'clock position and rides the Ferris wheel for multiple revolutions. The Ferris wheel rotates at a constant angular speed of 4.7 radians per minute and has a radius of 30 feet. Let t represent the number of seconds since the Ferris wheel started rotating. a. Write an expression (in terms of t) to represent the varying number of radians 8 Ryan has swept out since the ride started. Preview s height (in feet) above Preview c. Write an expression (in terms of t) to represent Ryan's height (in feet) above the ground.
General
2 months ago
Assume that a procedure yields a binomial distribution with n trials and the probability of success for one trial is p. Use the given values of n and p to find the mean mu and standard deviation sigma. Also, use the range rule of thumb to find the minimum usual value mu minus 2 sigma and the maximum usual value mu plus 2 sigma.n=1580,=1/4
General
2 months ago
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