blaue-studio
Calculators
General
Algebra
Geometry
Coordinate-geometry
Statistics
Calculus
Qna
Math
blaue-studio
blaue-studio
Home
General
Algebra
Geometry
Coordinate-geometry
Statistics
Calculus
Qna
Math
MATH SOLVE
Home
General
Sam was asked to evaluate the expression 5x+3x+20 for X = 100. Sam's work shown below. Sam's work:...
4 months ago
Q:
Sam was asked to evaluate the expression 5x+3x+20 for X = 100. Sam's work shown below. Sam's work: 5x+3x+20 = 100 8x+20 = 100 8x = 80 X = 10 What mistakes did Sam make? Help Sam to answer the question correctly.
Accepted Solution
A:
Sam had to substitute 100 instead of X
5x+3x+20 =
8x + 20 =
8*100 + 20 =
800 + 20 =
820 ← answer