Asurvey was conducted that asked 997 people how many books they had read in the past year. results indicated that x overbar equals 13.2 books and sequels 18.9 books. construct a 95 % confidence interval for the mean number of books people read. interpret the interval.
x = 1,143 liters
to solve this problem let's pose the following equation:
(amount of peroxide added + amount initial of solution)*(% of desired peroxide/100) = (amount of initial peroxide + amount of peroxide added).
* the added amount is unknown and we will call it x
* the percentage of peroxide desired is 16%
* the amount of initial peroxide is calculated as follows:
(%peroxide/ 100)(amount of initial substance)
finally the equation is:
(x + 12)(0.16) = 0.08(12) + x
0.16x -x = 0.96 - 1.92
-0.84x = -0.96
x = 1,143
$5865.6 per capita.
that is $1465,2 billion divided by 249,793,675
= 1,465,200,000,000 / 249,793,675
= $5865.6 per capita.
answer:v = 70x⁹ cubic units
the formula of a volume of a rectangular prism:
l - length
w - width
h - height
you have to multiply it by 12