Mathematics, 28.02.2020 19:38 myg21
A pharmacy mixes different concentrations of saline solutions for its customers. The pharmacy has a supply of two concentrations, 0.4% and 4%. The function y=((100)(0.4)+x(0.004))/(100+x) gives the concentration of the saline solution after adding x milliliters of the 0..4% solution to 100 milliliters of the 4% solution. How many milliliters of the 0.4% solution must be added to the 4% solution to get a 0.85% solution?
Please answer soon it's timed
Answers: 3
Mathematics, 20.06.2019 18:04
Hannah is 3 years older than twice her brother joey’s age. joey is 2 years old. how old is hannah? show all of your work! the number of students is five more than seven times the number of teachers. there are 10 teachers. how many students are there? be sure to show all of your work!
Answers: 1
Mathematics, 21.06.2019 15:00
When you arrive at the lake, your friend realises he hasn’t got any swimming trunks. you need to ride to a sports shop. the sports shop is 8350 metres away. how many metres is it to cycle there and back?
Answers: 1
Mathematics, 21.06.2019 18:00
In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ah=4 and hc=1, find bh.
Answers: 3
Mathematics, 21.06.2019 18:10
The means and mean absolute deviations of the individual times of members on two 4x400-meter relay track teams are shown in the table below. means and mean absolute deviations of individual times of members of 4x400-meter relay track teams team a team b mean 59.32 s 59.1 s mean absolute deviation 1.5 s 245 what percent of team b's mean absolute deviation is the difference in the means? 9% 15% 25% 65%
Answers: 2
A pharmacy mixes different concentrations of saline solutions for its customers. The pharmacy has a...
Geography, 22.04.2020 22:00
Chemistry, 22.04.2020 22:00
Chemistry, 22.04.2020 22:01
Mathematics, 22.04.2020 22:01
Social Studies, 22.04.2020 22:01
Arts, 22.04.2020 22:01
Chemistry, 22.04.2020 22:01
Biology, 22.04.2020 22:01
Health, 22.04.2020 22:01