Answer:
x = 15
Step-by-step explanation:
The equation for direct variation is
y = kx
y=21 when x=3
21 = k*3
Divide each side by 3
21/3 = 3k/3
7 =k
y = 7x
Let y=105
105 = 7*x
Divide by 7
105/7 = x
15 =x
To divide 1/2 by 4, you can treat it as (1/2)/(4/1), and to divide fractions you flip the second fraction and multiply, so:
(1/2)*(1/4)=1/8
So each portion of chocolate was 1/8 pounds.
answer:
volume =
m³
explanation:
Volume of rectangular prism: length * width * height
Here given the length is
, width is
, height is 
using the formula:
*
* 


m³
The answer: 1200
Do it like regular multiplication
300
4
_____
1200
Answer:
B) this time im 90% sure
Step-by-step explanation: