Answer:
x = 30
Step-by-step explanation:
10% fat = 0.1x
x = the solution, what we want to find
120 grams of 20% fat = 0.2 * 120
What we want is mixture of 18%
So....
0.1x + 0.2 * 120 = 0.18 (x + 120)
Solve:
0.1x + 24 = 0.18 (x +120)
0.1x + 24 = 0.18x + 21.6
24 = 0.08x + 21.6
x = 30
Answer:
Last choice is correct.
Step-by-step explanation:
![\left(\sqrt{10x^4}-x\sqrt{5x^2}\right)\left(2\sqrt{15x^4}+\sqrt{3x^3}\right)](https://tex.z-dn.net/?f=%5Cleft%28%5Csqrt%7B10x%5E4%7D-x%5Csqrt%7B5x%5E2%7D%5Cright%29%5Cleft%282%5Csqrt%7B15x%5E4%7D%2B%5Csqrt%7B3x%5E3%7D%5Cright%29)
![\left(x^2\sqrt{10}-x\cdot x\sqrt{5}\right)\left(2\cdot x^2\sqrt{15}+x\sqrt{3x}\right)](https://tex.z-dn.net/?f=%5Cleft%28x%5E2%5Csqrt%7B10%7D-x%5Ccdot%20x%5Csqrt%7B5%7D%5Cright%29%5Cleft%282%5Ccdot%20x%5E2%5Csqrt%7B15%7D%2Bx%5Csqrt%7B3x%7D%5Cright%29)
![\left(x^2\sqrt{10}-x^2\sqrt{5}\right)\left(2x^2\sqrt{15}+x\sqrt{3x}\right)](https://tex.z-dn.net/?f=%5Cleft%28x%5E2%5Csqrt%7B10%7D-x%5E2%5Csqrt%7B5%7D%5Cright%29%5Cleft%282x%5E2%5Csqrt%7B15%7D%2Bx%5Csqrt%7B3x%7D%5Cright%29)
![x^2\sqrt{10}\left(2x^2\sqrt{15}+x\sqrt{3x}\right)-x^2\sqrt{5}\left(2x^2\sqrt{15}+x\sqrt{3x}\right)](https://tex.z-dn.net/?f=x%5E2%5Csqrt%7B10%7D%5Cleft%282x%5E2%5Csqrt%7B15%7D%2Bx%5Csqrt%7B3x%7D%5Cright%29-x%5E2%5Csqrt%7B5%7D%5Cleft%282x%5E2%5Csqrt%7B15%7D%2Bx%5Csqrt%7B3x%7D%5Cright%29)
![2x^4\sqrt{150}+x^3\sqrt{30x}-2\sqrt{75}x^4-x^3\sqrt{15x}](https://tex.z-dn.net/?f=2x%5E4%5Csqrt%7B150%7D%2Bx%5E3%5Csqrt%7B30x%7D-2%5Csqrt%7B75%7Dx%5E4-x%5E3%5Csqrt%7B15x%7D)
![2x^4\cdot5\sqrt{6}+x^3\sqrt{30x}-2\cdot5\sqrt{3}x^4-x^3\sqrt{15x}](https://tex.z-dn.net/?f=2x%5E4%5Ccdot5%5Csqrt%7B6%7D%2Bx%5E3%5Csqrt%7B30x%7D-2%5Ccdot5%5Csqrt%7B3%7Dx%5E4-x%5E3%5Csqrt%7B15x%7D)
![10x^4\sqrt{6}+x^3\sqrt{30x}-10\sqrt{3}x^4-x^3\sqrt{15x}](https://tex.z-dn.net/?f=10x%5E4%5Csqrt%7B6%7D%2Bx%5E3%5Csqrt%7B30x%7D-10%5Csqrt%7B3%7Dx%5E4-x%5E3%5Csqrt%7B15x%7D)
![10x^4\sqrt{6}+x^3\sqrt{30x}-10x^4\sqrt{3}-x^3\sqrt{15x}](https://tex.z-dn.net/?f=10x%5E4%5Csqrt%7B6%7D%2Bx%5E3%5Csqrt%7B30x%7D-10x%5E4%5Csqrt%7B3%7D-x%5E3%5Csqrt%7B15x%7D)
Hence final answer is ![10x^4\sqrt{6}+x^3\sqrt{30x}-10x^4\sqrt{3}-x^3\sqrt{15x}](https://tex.z-dn.net/?f=10x%5E4%5Csqrt%7B6%7D%2Bx%5E3%5Csqrt%7B30x%7D-10x%5E4%5Csqrt%7B3%7D-x%5E3%5Csqrt%7B15x%7D)
B is the answer to thsi question.
Answer: the slope would be 0
Step-by-step explanation: