So the price is C
and 20 cakes is T
So 1 cake times 20=20 cakes
so 20C=T
Answer:
84
Step-by-step explanation:
Let the first digit = x
Let the second digit =y
x + y = 12
x + 4 = 3*y
===========
From the second equation, we learn that x = 3y - 4
Put that into the first equation.
3y - 4 + y = 12 Combine the left side
4y - 4 = 12 Add 4 to both sides
4y = 16 Divide by 4
4y/4 = 16/4
y = 4
=================
x + 4 = 12
x + 4 - 4 = 12-4
x = 8
So the number is 84
Answer:163.54$
Step-by-step explanation:
Given data
Volume of Storage(V)=
Length=2breadth
Let Length be L,Breadth be & height be H
therefore
10=LBH
Now substitutes the values
10=2
5=
Now cost for base is 
Cost for side walls is
Now total cost(C)=
C=20
+
+
C=20
+24BH+
C=
Now Differentiating With respect to Breadth to get minimum cost

![we\ get\ B=\sqrt[3]{4.5}=1.65m](https://tex.z-dn.net/?f=we%5C%20get%5C%20B%3D%5Csqrt%5B3%5D%7B4.5%7D%3D1.65m)


and mimimum cost C

Answer:
3141.6 in^3
Step-by-step explanation:
The formula for volume of a right cylinder is v=πr²h. So, when you plug everything in and multiply, you get 3141.6 in^3 as your volume. Hope this helps, and stay safe! ;p