Answer:
Thew answer is "40 pounds".
Step-by-step explanation:
The value of x pound is $5
It's mixed with 80 pound
Formula:
[tex]\text{Average price} = \frac{\text{Rate of both}}{\text{weight of both}}[/tex]
Average price = 3
[tex]\to 3 = \frac{5\times x+ 2\times 80}{x+ 80}[/tex]
[tex]\to 3 = \frac{5x+ 160}{x+80}\\\\\to 3(x+80) = 5x+ 160 \\\\\to 3x+240 = 5x+ 160 \\\\\to 240-160 = 5x-3x \\\\\to 80 = 2x \\\\\to 2x=80 \\\\\to x=\frac{80}{2} \\\\\to x= 40[/tex]
