The Chambers family has driven 603 miles at a constant speed of 67mph. How many hours have they been driving. Use d = rt to solve. Write an equation for the situation that will represent the distance for any time.

d = 67t

and

eqn d = 67t represents d over time.

Step-by-step explanation:

part one : find the hours they have been driving

d = 603 miles driven

r = 67 mph

t = ?

r = d/t

rt = d

t = d/r

t = 603/67

t = 9

unit = in hours

they have been driving for 9 hours.

part 2 : find an equation for the situation that represents distance for any time

t is the independent variable

d will represent the dependent variable

let r represent the slope

d = rt

d = 67t

therefore the eqn d = 67t represents d over time.

  b.   the average rate of change of f(x) is less than the average rate of change of g(x).

step-by-step explanation:

since the length of the interval is the same in each case, we only need to compare the change in y-value to see which is greater.

so the change in y-value for function f is (6 )) = 9.

the table tells us

so the change in y-value for function g is (31 -1) = 30.

the change in y-value of f(x) on the interval is less than the change in y-value of g(x) on the same interval, so the average rate of change of f(x) is less than the average rate of change of g(x).

answer: 1722

step-by-step explanation:

given: the mass of saturn=

the mass of mercury=

the number of times the mass of saturn is greater than the mass of mercury

hence, the mass of saturn is 1722 times greater than the mass of mercury.