Find both speeds

Assignment Help Mathematics
Reference no: EM13197076

A train travels 120 km in the same time that a plane covers 420 km. If the speed of the plane is 40 km per hr less than 4 times the speed of the train, find both speeds.

Reference no: EM13197076

Questions Cloud

State the enthalpy of neutralization of hcl with naoh : The enthalpy of neutralization of HCl with NaOH is -55.8 kJ/mol when very dilute solutions are mixed, but is -58.2 kJ/mol when 2M solutions are mixed, as in this experiment. The reaction is
By how much would value of the financial securities decline : Assume that securitization combined with borrowing and irrational exuberance in Hyperville have driven up the value of existing financial securities at a geometric rate, specifically from $2 to $4 to $8 to $16 to $32 to $64 over a six-year time pe..
Compute the enthalpy change reaction per mole of x : Calculate the enthalpy change, H, for this reaction per mole of X. Ignore any heat transfer to or from the calorimeter.
Recast johnsons income statement : Write a short essay on how management accounting can help the managers of an organization to run their business efficiently and prepare a report for Johnson explaining the errorshe made in his income statement
Find both speeds : A train travels 120 km in the same time that a plane covers 420 km. If the speed of the plane is 40 km per hr less than 4 times the speed of the train, find both speeds.
What is the deadweight loss associated with the monopoly : A monopolist faces a demand curve given by: P = 70 - 2Q, where P is the price of the good and Q is the quantity demanded. The marginal cost of production is constant and is equal to $6. There are no fixed costs of production.
How much profit will the monopolist make : A monopolist faces a demand curve given by: P = 220 - 3Q, where P is the price of the good and Q is the quantity demanded. The marginal cost of production is constant and is equal to $40. There are no fixed costs of production.
Depict a lewis structure for acyl chloride : Draw a Lewis structure for acyl chloride R-C(=O)-Cl and state its 3D-structure around the central atom (C). R is an acyl substituent.
Determine what is the marginal cost of production : A monopolist faces a demand curve given by: P = 220 - 3Q, where P is the price of the good and Q is the quantity demanded. The marginal cost of production is constant and is equal to $40. There are no fixed costs of production. How much output sho..

Reviews

Write a Review

Mathematics Questions & Answers

  Mean and variance and error probability

Mean and Variance and Error Probability, Binary data are transmitted over a noisy communications channel in block of 16 binary digits

  Calculus in commerece-marginal revenue

The marginal revenue derived from producing q units of a certain commodity is R'(q) = 4q - 1.2q^2 dollars per unit. If the revenue derived from producing 20 units is $30,000 how much revenue should be expected from producing 40 units?

  Determining cubic graph

George has decided that a distribution of data is cubic, that is it has the general form of a function "f(x)=x^3" if the point on the curve that should be at (0,0) is found at (-3,7) and the point.

  Information about composite function

Obtain the composite functions f(g(x)) and g (f(x)), and find all (if any) values of x such that f(g(x)) = g (f(x))

  The probability that she is either rich or beautiful

the probability that she is either rich or beautiful is 0.5, what is the probability that she is both rich AND beautiful?

  Probabilities for spin the wheel

You're at a school fair where one of the games is "Spin the Wheel". Players spin a giant wheel with numbers 1-40. Look at each of the criteria and express the answers as a decimal, fraction and a percentage.

  There is a very famous distribution that describes

There is a very famous distribution that describes the frequency of the number of times a number comes up in a series of dice rolls, what is its name?

  What is the probability that the mean contents

Sodas in a can are supposed to contain an average 12 oz. This particular brand has a standard deviation of 0.1 oz., with an average of 12.1 oz. If the contents in the population of all cans follow a normal distribution, what is the probability tha..

  What balance does the bank statement show

Your checkbook shows a balance of $992.23. The bank statement does not show a deposit of $673.77, and checks for $122.52, $119.47, and $29.40 have not been cashed. What balance does the bank statement show?

  Determine the total number of chocolates got by student

Teachers also found that strength of class is maximum satisfying all above conditions. Determine the total no. chocolates got by student A of the first class.

  Does the sign of the base change

When rewriting an exponential expression that has a negative exponent and a positive base to an exponential expression containing a positive exponent, does the sign of the base change? Demonstrate with an example.

  How much was invested at each rate

Mr. Smith invested $48,000, part at 6% interest and the remainder at 10%. He received $4000 in interest after one year. How much was invested at each rate?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd