area = l x w
area = 9 x 9
area = 81
Hope this was helpful. :-)
Answer:
Upto 40 g or 160 mmols
Step-by-step explanation:
Can you plz mark me as brainliest?
Answer:35 cents per apple.
Step-by-step explanation:
3.50/10=0.35
The difference between both unit rates rounded off to the nearest tenth is: 0.4 meters per second
Step-by-step explanation:
We have to calculate his unit rate for both type of races
So,
<u>Unit rate for 400m race:</u>
Distance = 400m
Time = 43 sec
![Unit\ rate = U_1= \frac{Distance}{Time}\\=\frac{400}{43}\\=9.30\ meters\ per\ second](https://tex.z-dn.net/?f=Unit%5C%20rate%20%3D%20U_1%3D%20%5Cfrac%7BDistance%7D%7BTime%7D%5C%5C%3D%5Cfrac%7B400%7D%7B43%7D%5C%5C%3D9.30%5C%20meters%5C%20per%5C%20second)
<u>Unit rate for 300m Race:</u>
Distance = 300m
Time = 31 sec
![Unit\ Rate= U_2=\frac{300}{31}\\=9.68\ meters\ per\ second](https://tex.z-dn.net/?f=Unit%5C%20Rate%3D%20U_2%3D%5Cfrac%7B300%7D%7B31%7D%5C%5C%3D9.68%5C%20meters%5C%20per%5C%20second)
The difference between both unit rates is:
![U_2-U_1 = 9.68-9.30\\=0.38 => 0.4\ meters\ per\ sec](https://tex.z-dn.net/?f=U_2-U_1%20%3D%209.68-9.30%5C%5C%3D0.38%20%3D%3E%200.4%5C%20meters%5C%20per%5C%20sec)
Hence,
The difference between both unit rates rounded off to the nearest tenth is: 0.4 meters per second
Keywords: Unit rate, Speed
Learn more about unit rate at:
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The number of small tiles are needed is 300 tiles.
<h3>Number of tiles needed</h3>
Using area of rectangular formula
Area of the room = length(l) × breadth (b)
Area of the room=300 cm×180 cm
Area of the room=54,000 cm²
Number of tiles needed = Area of rectangular region / Area of one tile
Number of tiles needed=54,000/180
Number of tiles needed=300 tiles
Therefore the number of small tiles are needed is 300 tiles.
Learn more about number of tiles needed here:brainly.com/question/2136390
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