subject
Mathematics, 20.01.2020 12:31 eden1017

Class 11w sat a test. the mean mark of the class was 80%

there are 40 students in the class, 30 are girls. the mean mark of the girls was 75%, work out the mean mark for the boys?

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 16:10
To find the extreme values of a function f(x.y) on a curve x-x(t), y y(t), treat f as a function of the single variable t and use the chain rule to find where df/dt is zero. in any other single-variable case, the extreme values of f are then found among the values at the critical points (points where df/dt is zero or fails to exist), and endpoints of the parameter domain. find the absolute maximum and minimum values of the following function on the given curves. use the parametric equations x=2cos t, y 2 sin t functions: curves: i) the semicircle x4,y20 i) the quarter circle x2+y-4, x20, y20 b, g(x,y)=xy
Answers: 2
question
Mathematics, 21.06.2019 17:00
Determine the fraction of total interest owed. after the fourth month of a 12-month loan: the numerator is: {(n + ) + (n + ) + (n + ) + (n + )} = , and the denominator is: {(n) + (n + 1) + + (n + )} = . therefore, the fraction is numerator/denominator (to the nearest tenth) =
Answers: 1
question
Mathematics, 21.06.2019 17:10
Which is a graph of a proportional relationship?
Answers: 1
question
Mathematics, 21.06.2019 17:30
11. a particular type of cell doubles in number every hour. which function can be used to find the number of cells present at the end of h hours if there are initially 4 of these cells? a. n = 4 ()" b. n = 4(2)" c. n = 4 + (2)" din = 4 +"
Answers: 1
You know the right answer?
Class 11w sat a test. the mean mark of the class was 80%

there are 40 students in the cl...
Questions
question
Mathematics, 03.07.2019 14:30
question
History, 03.07.2019 14:30
question
Mathematics, 03.07.2019 14:30
Questions on the website: 13722367