Naomi and claire are painting a mural. naomi paints 2 square feet per hour and has already painted 16.5 square feet. claire paints 4 square feet per hour and has already painted 7.5 square feet. how many more hours will it take for naomi and claire to paint an equal total number of square feet?
Answers
Answer:
The correct answer will be, It will take them 4.5 hrs more.
Step-by-step explanation:
From the above question,
Let the time taken for them to paint equal areas be x hrs.
The equations modelling the area painted by each is as follows :
Naomi:
A = 2x + 16.5
Clair :
A = 4x + 7.5
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We want the value of x for which :
Naomi's area = Clair's area
This is :
2x + 16.5 = 4x + 7.5
4x - 2x = 16.5 -7.5
2x = 9
x = 4.5 hours
It will take them 4.5 hrs more.
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