Cory earns $20 for every lawn he mows and $9 for every hedge he trims. He uses the expression 20x + 9y to keep track of his earnings.
Part A: Identify the coefficients and variables in the expression.
Part B: How many terms are in the expression, what are they, and how do you know?
Part C: Which term in the expression shows the total earned from trimming hedges?
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coefficient -- the number that is multiplied by a variable (letter).
Example : 25y....25 is the coefficient : 30x....30 is the coefficient
variable -- a symbol for a number that is not known yet...usually a letter
Example : 25y...y is your variable : 30x....x is your variable
term -- either a single number, or numbers and variables multiplied together
2x + 7y = 5.....the terms are 2x,7y,and 5
2xy + 7y^2 = 16....terms are 2xy,7y^2, and 16
if it is $9 per hedge....and y stands for how many hedges he trimmed....then the total amount , just for hedges is : 9y