Amelia gets 4 points for each correct answer on her science quizzes, and she loses 1 point for each wrong answer. On her quiz last week Amelia eamed 50 points and
answered 25 questions.
Which system of equations correctly represents this situation?
a. 4c - w = 50
c+w = 20
b. 4w - c = 20
c+w=50
c. 4c - w = 50
c+w= 25
d. 4w - 4c = 30
C+ w = 25

$4

step-by-step explanation:

$30×5=$150

$150 minus $130=$20

$20÷5=$4.

hope to and hope that my answer is brainliest.(follow me )

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.

combine all like terms then its just a 2 step equation