1 ) Tim earns $12.50 an hour cleaning houses. If he works from 8:00am to 2:00pm,
2 answers:
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Answer:
36 tiles
Step-by-step explanation:
Because the room is square, the numbers of tiles along the edge of the room were multiplied by the same number, meaning that:
81 = x²
So to find x, we must square root both sides of the equation:
x = 9
So the length of one side is 9 tiles. Now to calculate the circumference, as each side of a square is the same length, we can multiply this number by 4:
9 * 4 = 36
So there are 36 tiles along the edge of the room.
Hope this helps!
Answer: First option is correct.
Step-by-step explanation:
Since we have given that
We first solve the brackets:
(16-9) = 7
Now, we multiply it with 4
Now, we add 3 to it:
Hence, the value of expression would be 31.
Therefore, First option is correct.