Naomi and Claire are painting a mural. Naomi paints 2 square feet per hour and has already painted 16.5 square feet. Claire pain
2 answers:
Answer:
<h2>After four and a half hours, they will paint the same amount of area.</h2>Step-by-step explanation:
Let's call hours.
So, Naomi paints at a rate of which means 2 square feet per hour. Additionally, we know that she already painted 16.5 square feet. All this is expressed as
On the other hand, Claire paints at a rate of , that is, 4 square feet per hour. She already painted 7.5 square feet. All this can be expressed as
If we want to find the time where the paint an equal number of square feet, we just need to make then equal, that is
Then, we solve for
Therefore, after four and a half hours, they will paint the same amount of area.
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Answer:
Third option.
Step-by-step explanation:
You need to cube both sides of the equation. Remember the Power of a power property:
According to the Product of powers property:
Then. simplifying you get:
Now you need to compare the exponents. You can observe that the exponent of "x" on the right side is 6, then the exponent of "x" on the left side must be 6. Therefore:
You can notice that the exponent of "y" on the left side is 5, then the exponent of "x" on the left side must be 5 too. Therefore "d" is: