c6allemhoverybel c6allemhoverybel

22-10-2016
Mathematics

contestada

One person can mow a field in 52 minutes and a second can mow the same field in 40 minutes. how long would it take the two of them to mow the field together?

Respuesta :

22-10-2016

It would be:1/x = 1/40+1/52 = 13+10/520 = 23/520

x = 520/23 = 22.60 minutes

Answer Link

Otras preguntas

As you just learned, in real ecosystems, trophic efficiencies usually vary from about 5% to about 20%. as a result, net production diagrams for ecosystems have

Which of the following is the best example of a check on presidential power

0/17 into a decimal using long division

Consider the reaction between HCl and O2: 4HCl grams + O2 - 2 H2O liquid + 2 Cl2 grams When 63.1 grams of HCl react with 17.2 g of O2, 49.3 grams of Cl2 are col

Nutrients that provide energy include carbohydrates, fats, and vitamins. a. True b. False

The kidneys can have a direct influence on ___________, by pushing hydrogen ions and bicarbonate into and out of urine.

A 22-year-old man was struck in the forehead by a softball. he is conscious and alert, but complains of a severe headache. your assessment reveals a large hemat

A manager of a monopoly firm notices that the firm is producing output at a rate at which average total cost is falling but is not at its minimum feasible point

Structural component changes include ________. a. changing attitudes b. combining departmental responsibilities c. changing behavior d. changing work processes

Find the value of z if the area under a standard normal curve (a) to the right of z is 0.3622; (b) to the left of z is 0.1131; (c) between 0 and z, with z >