Mathematics, 23.04.2021 17:00 gooby1324

W szkolnych zawodach sportowych wzięło udział łącznie trzydziestu zawodników z trzech klas pierwszych. Reprezentacja klasy I a liczyła o 20% zawodników więcej niż reprezentacja klasy I b, a reprezentacja klasy I c o dwóch uczniów mniej niż reprezentacja I b. Jak liczne były reprezentacje poszczególnych klas?

Answers: 2

Show answers

Another question on Mathematics

Mathematics, 21.06.2019 20:00

Suppose you are an avid reader and are looking to save money on the cost of books instead of paying about $20 for each book, you decide to look into purchasing a kindle for $120 you can purchase e-books for about $5 each 1. find the slope-intercept equation for the cost of the hard copy of books using x to represent the number of books 2. find the slope-intercept equation for the cost of the kindle with cost of e-books using x to represent the number of books

Answers: 1

Answer

Mathematics, 21.06.2019 20:50

An automobile assembly line operation has a scheduled mean completion time, μ, of 12 minutes. the standard deviation of completion times is 1.6 minutes. it is claimed that, under new management, the mean completion time has decreased. to test this claim, a random sample of 33 completion times under new management was taken. the sample had a mean of 11.2 minutes. assume that the population is normally distributed. can we support, at the 0.05 level of significance, the claim that the mean completion time has decreased under new management? assume that the standard deviation of completion times has not changed.

Answers: 3

Answer

Mathematics, 21.06.2019 22:30

I’ve been trying all day to figure this puzzle out. i need the work for it aswell. it is a factoring polynomials tarsia. the image is below.

Answers: 3

Answer

Mathematics, 21.06.2019 23:30

The triangle shown has a hypotenuse with a length of 13 feet. the measure of angle a is 20 degrees. and the measure of angle b is 70 degrees. which of the following is closest to the length, in feet, of line segment ac? no need to use a calculator to find the trig numbers. each function is listed below. 4.4 5 12.2 35.7

Answers: 2

Answer

You know the right answer?

W szkolnych zawodach sportowych wzięło udział łącznie trzydziestu zawodników z trzech klas pierwszyc...

Questions