Mathematics, 05.11.2020 17:00 unknownyobutt21
Brass is made from a mixture of copper and other elements. A mixture that is 80% copper is combined with a mixture that is 60% copper, resulting in 100 pounds of brass that is 65% copper. Which equation can be used to find x, the amount of 60% mixture used to create the 65% mixture?
Answers: 1
Mathematics, 21.06.2019 23:00
Shared decision making is always a positive strategy to take
Answers: 1
Mathematics, 22.06.2019 01:50
Thomas is using a drawing program to complete a construction. which construction could he be completing? two perpendicular lines are drawn. inscribing an equilateral triangle in a circle inscribing a square in a circle inscribing a regular pentagon in a circle inscribing a regular hexagon in a circle
Answers: 1
Mathematics, 22.06.2019 03:00
In this problem, we explore the effect on the standard deviation of multiplying each data value in a data set by the same constant. consider the data set 14, 6, 8, 15, 15. (a) use the defining formula, the computation formula, or a calculator to compute s. (round your answer to one decimal place.) s = 4.28 (b) multiply each data value by 3 to obtain the new data set 42, 18, 24, 45, 45. compute s. (round your answer to one decimal place.) s = 12.83 (c) compare the results of parts (a) and (b). in general, how does the standard deviation change if each data value is multiplied by a constant c? multiplying each data value by the same constant c results in the standard deviation remaining the same. multiplying each data value by the same constant c results in the standard deviation being |c| times as large. multiplying each data value by the same constant c results in the standard deviation increasing by c units. multiplying each data value by the same constant c results in the standard deviation being |c| times smaller. (d) you recorded the weekly distances you bicycled in miles and computed the standard deviation to be s = 3.8 miles. your friend wants to know the standard deviation in kilometers. do you need to redo all the calculations? yes no given 1 mile รขโฐ 1.6 kilometers, what is the standard deviation in kilometers? (enter your answer to two decimal places.)
Answers: 1
Mathematics, 22.06.2019 03:30
Eiko is wearing a magic ring that increases the power of her healing spell by 30%30\%30%30, percent. without the ring, her healing spell restores health points. which of the following expressions could represent how many health points the spell restores when eiko is wearing the magic ring?
Answers: 2
Brass is made from a mixture of copper and other elements. A mixture that is 80% copper is combined...
Biology, 11.10.2019 10:50
Mathematics, 11.10.2019 10:50
History, 11.10.2019 10:50
English, 11.10.2019 10:50
Social Studies, 11.10.2019 10:50
Mathematics, 11.10.2019 10:50
Arts, 11.10.2019 10:50
History, 11.10.2019 10:50
Mathematics, 11.10.2019 10:50
Computers and Technology, 11.10.2019 10:50