if 71 paying passengers are all children, they should pay 5* 71= $355 in total.
$439 is paid so adults pay $439-$355 = $84 more than money paid by same number of children.
each adult pays $8-$5=$3 more than each child
so there are $84/$3= 28adults
and 71-28= 43 children
Answer:
Spiced eye gonna flush my toilet now ;)
Answer:
The mean is 41
Step-by-step explanation:
Here , we are interested in finding the mean.
Firstly, let the standard deviation be x and the mean be y.
We are told that 51 is 2 standard deviations above the mean. What this mean is that if we subtract 2 standard deviations from 51, we will arrive at the mean.
Mathematically;
51 - 2(x) = y
y + 2x = 51 •••••••••(i)
We are also told that 36 is one standard deviation below the mean. What this mean is that if we subtract one standard deviation from the mean, we will have 36
Mathematically, that would be;
y-36 = x •••••••(ii)
Substitute ii into i directly;
We have
y + 2(y-36) = 51
y + 2y -72 = 51
3y -72 = 51
3y = 51 + 72
3y = 123
y = 123/3
y = 41
Answer:Solve by simplifying for both sides of the equation, then isolating the variable.
Step-by-step explanation: x=0.4174294
