Addison painted her room. She had 50 square meters to paint and she painted at a constant rate. After two hours of painting she had 35 square meters left. Let Y represent the area (in square meters) left to paint after x hours
Answers
Y = 50 - 7.5X if 35 m² Area left to paint after 2 hrs out of total 50m²
Step-by-step explanation:
Addison painted her room. She had 50 square meters to paint and she painted at a constant rate.
At Time = 0 she had 50 m² Left to panint as She has not started yet
Time X in hrs Area Left to Paint Y in m²
0 50
2 35
Let say
Y = aX + b
at X = 0 , Y = 50
=> 50 = a*0 + b
=> b = 50
=> Y = aX + 50
at X = 2 , Y = 35
=> 35 = 2a + 50
=> 2a = -15
=> a = -7.5
=> Y = -7.5X + 50
=> Y = 50 - 7.5X
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Answer:
Y = 50 - 7.5X
Step-by-step explanation:
Y = 50 - 7.5Xv