Melanie's bedroom walls are painted 45% painted. The area if her walls totals 420 square feet. What number of square feet of Melanie's walls still need to be painted?

Solution:

Given that,

Melanie's bedroom walls are painted 45% painted

The area of her walls totals 420 square feet

To find: number of square feet of Melanie's walls still need to be painted

From given,

45 % of wall is painted

Which means, 100 % - 45 % = 55 % is still remaining to be painted

55 % of total area is still remaining to be painted

Therefore,

Remaining to be painted = 55 % of 420

Thus 231 square feet of Melanie's walls still need to be painted

step-by-step explanation:

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step-by-step explanation:

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