Answer:
Step-by-step explanation:
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Answer:
James=x=15 points
Matt=4x=4×15=60 points
Emily=4x+20= (4×15)+20= 60+20=80points
Step-by-step explanation:
You should breakdown the question by writing an expression to represent the points for each person
Lets assume James had x points
So Matt had 4 times as many points as James= 4x points
Emily had 20 points more than Matt= 4x+20 points
Total number of points all together was =155
Write an expression for the total number of points all together
Solve for x in the equation
Substitute values in expressions
James=x=15 points
Matt=4x=4×15=60 points
Emily=4x+20= (4×15)+20= 60+20=80points
N/2=-12 multiply both sides by 2
n=-24
So the number is -24
Answer:
C
Step-by-step explanation: