Dropping less than two inches per mile after emerging from the mountains, a river drains into the ocean. one days discharge at its mouth, 4.8 trillion gallons, could supply all of country a's households for six months.
based on this statement determine how much water an average household uses each month. assume that there are 100 million households in country a
country a uses approximately gallons per household per month (use a whole number)

8000 gallons/household per month

Step-by-step explanation:

Given that the discharge of 4.8 trillion gallons could supply country A households in 6 months, find for a single month.

Divide the discharge (4.8 trillion gallons) by 6

4.8/6 =0.8 trillion gallons supplied to country,s households in 1 month

To find usage per household, divide the supply per month by the number of households

=0.8 × 1000,000,000,000 gallons/100,000,000 households

=0.8×10,000 gallons/household

=8000 gallons/household per month

x = central angle apc = measure of minor arc ac

the two angles x and 30 add to 180, so x+30 = 180 and x = 180-30 = 150. the measure of minor arc ac is 150 degrees.

what we need to do from here is find the circumference and then multiply it by x/360 since there are 360 degrees in a circle. in this case, x = 150, so x/360 = 150/360 = 15/36 = 5/12. the shortest distance along the curve from a to c is 5/12 of the distance around the entire circle (aka circumference)

c = circumference

c = pi*d

c = pi*24

c = 24pi

now multiply this by 5/12 to get

distance along minor arc ac = (5/12)*(circumference)

distance along minor arc ac = (5/12)*(24pi)

distance along minor arc ac = 10pi

the formula you can use is

l = (x/360)*pi*d

with

l = length of minor arc

x = central angle

d = diameter

which essentially is the steps we took though a bit differently.

80

step-by-step explanation: