12000+875=12875 the total he paid
12000*x/100*4=12875
480x=12875
x=12875/480
x=26,82 %
Use the point-slope form of the equation of a straight line
y - y1 = m(x - x1) here m = (2/5), x1 = 2 and y1 = -1.
y -(-1) = (2/5)(x - 2)
y + 1 = (2/5) (x - 2)
multiplying through by 5:-
5y + 5 = 2x - 4
5y = 2x - 9
Answer:
76.2838
Step-by-step explanation:
E[X+Y] = E[X] + E[Y]
E[X] is the average of X or expectancy of X
E[Y] is the average or expectancy f Y
E[X] = 40P(student is in bus 1)+33P(student is in bus 2)+25P(student is in bus 3)+50P(student is in bus 4)=
40(40/148) + 33(33/148) + 25(25/148) + 50(50/148) = 39.2838
E[Y] = (number of students)/(number of drivers) = 148/4 = 37
So E[X+Y] = 39.2838 + 37 = 76.2838
Answer:
"principal root"
Step-by-step explanation:
The positive (even or odd) root of a positive real number is called its <em>principal root</em>.
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When an odd root is taken of a negative real number, the negative real root is the principal root. That is -2 is the principal cube root of -8.
