0.3f +1 = 0.2f - 4.5
what’s the answer step by step

Hey!

-----------------------------------------------

Steps To Solve:

0.3f + 1 = 0.2f - 4.5

~Subtract 0.2f to both sides

0.3f + 1 - 0.2f = 0.2f - 4.5 - 0.2f

~Simplify

0.1f + 1 = -4.5

~Subtract 1 to both sides

0.1f + 1 - 1 = -4.5 - 1

~Simplify

0.1f = -5.5

~Divide 0.1 to both sides

0.1f/0.1 = -5.5/0.1

~Simplify

f = -55

-----------------------------------------------

-----------------------------------------------

Hope This Helped! Good Luck!

55.44 inches

step-by-step explanation:

part a. assuming a perfectly linear relationship, we can find the slope from the first two data points.

slope = m = (change in rainfall)/(change in years)

= (61.80 -62.33)/(2005 -2004) = -0.53/1 = -0.53

then the point-slope form of the equation of the line can be written as

y = m(x -h) +k . . . . . m = -0.53, (h, k) = (0, 62.33)

y = -0.53x +62.33 . . . x = years after 2004

part b. in 2017, x = 2017 -2004 = 13. then the predicted rainfall is

y = -0.53·13 +62.33 = 55.44 . . inches

the predicted rainfall in 2017 is 55.44 in.