Answer:

Step by step explanation:

 
        
             
        
        
        
Answer: For 3 Batches, 6 butter & 9 flour
For 5 Batches, 10 butter & 15 flour
Step-by-step explanation:
1 Batch = 2:3
So, whatever we times up by in batches we can do the same to the ingredients.
1 batch = 2:3 
multiply 3
3 batches = 6:9
and so on…
 
        
                    
             
        
        
        
For this problem you can create a proportion.
Since 31,100 copies is 7.8% of the total copies spoke up to date you can make this proportion: 
31,100. 7.8%
——— =. ———
 x. 100%
Now you cross multiply and you will get 
7.8x=3,110,000
After this you solve for x by isolating the variable. 
7.8x/7.8. 3,110,000/7.8
x=398,717.949
Since the question asks you to round to the nearest whole number which is 7 then the final answer would be 398,718
 Answer: There has been 398,718 copies sold to date.
        
             
        
        
        
Answer:


Step-by-step explanation:
Area:
 π
 π 
 π
 π  *Square 2x*
       *Square 2x*
 π
 π  *Divide by π*
          *Divide by π*
 *Divide by 4*
           *Divide by 4*
 *Square root*
             *Square root*
 *Solve*
           *Solve*
x ≈ 3.482
Now take the same equation but replace 2x with 3x
 π
 π 
Now replace x with 3.482 and solve for area.

Volume:
 π
 π  *Insert variables*
               *Insert variables*
 π
 π  *Cube 2x*
     *Cube 2x*
 π
 π  *Multiply
     *Multiply  on both sides*
 on both sides*
 π
 π  *Divide by π*
    *Divide by π*
 *Divide by 8*
           *Divide by 8*
 *Cube root*
             *Cube root*
![\sqrt[3]{10.770} = x](https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7B10.770%7D%20%3D%20x) *Solve*
            *Solve*
x ≈ 2.208
Now take the same equation but replace 2x with 3x
 π
 π  
     
Now replace x with 2.208 and solve for volume.

 
        
             
        
        
        
Answer:
The most t-shirts that he can buy is 3
Step-by-step explanation:
He has $50 and needs to have $10 for lunch. So take away the money for lunch and that leaves you with $40. Each t-shirt cost $12 so $40 divided by $12 is 3.333333333. But you can't buy a part of a t-shirt you the most t-shirt you can buy is 3