Answer:
3.60
Step-by-step explanation:
1.44/0.4 is 3.60
Answer:
5 pack notebook
Step-by-step explanation:
5 pack notebook costs more because the 4 pack notebook costs 4 dollars w/ 2 cents off, and 5 pack notebook costs 5 dollars and with 1 cent of, so if ir increase by 1 dollar, than probably the 5 pack costs more. It is not about how many, but how much dollars are for per/ notebook.
Answer:
B
Step-by-step explanation:
3x + 5 = 29
3x = 24
x = 8
Answer:
Length 7 feet and Width 5 feet
Step-by-step explanation:
we know that
The area of the rectangle ( a dining room table) is equal to
![A=LW](https://tex.z-dn.net/?f=A%3DLW)
where
![L=(3x+1)\ ft](https://tex.z-dn.net/?f=L%3D%283x%2B1%29%5C%20ft)
![W=(3x-1)\ ft](https://tex.z-dn.net/?f=W%3D%283x-1%29%5C%20ft)
![A=35\ ft^2](https://tex.z-dn.net/?f=A%3D35%5C%20ft%5E2)
substitute
![35=(3x+1)(3x-1)](https://tex.z-dn.net/?f=35%3D%283x%2B1%29%283x-1%29)
Apply difference of squares right side
![35=9x^2-1](https://tex.z-dn.net/?f=35%3D9x%5E2-1)
![9x^2=36\\x^2=4\\x=\pm2](https://tex.z-dn.net/?f=9x%5E2%3D36%5C%5Cx%5E2%3D4%5C%5Cx%3D%5Cpm2)
Remember that the length cannot be a negative number
so
x=2
<em>Find the length</em>
![L=(3(2)+1)=7\ ft](https://tex.z-dn.net/?f=L%3D%283%282%29%2B1%29%3D7%5C%20ft)
<em>Find the width </em>
![W=(3(2)-1)=5\ ft](https://tex.z-dn.net/?f=W%3D%283%282%29-1%29%3D5%5C%20ft)
In order to have the least amount of each, you would need to purchase 2 packages of large plates. Here is the reasoning:
You can buy the following number of large plates and small plates:
Small: 8, 16, 24, 32, ...
Large: 12, 24, 36, ...
The smallest number that can be bought so you have an equal amount is 24 of each.
To get 24 large plates, you would need 2 packages.