X^2 - 6x = 20
x^2 - 6x + 9 = 20 + 9
(x - 3)^2 = 29
x - 3 = (+-) sqrt 29
x = 3 (+-) sqrt 29
x = 3 (+-) 5.39
x = 3 + 5.39 = 8.39 <=
x = 3 - 5.39 = - 2.39 <=
Answer:
29.24 grams
Step-by-step explanation:
It is given that,
Rachel's chocolate bar is 43% cocoa
The weight of the chocolate bar is 68 grams
We need to find how many grams of cocoa does it contain. It means it will contain 43% of 68 grams. It can be solved as follows :
![C=\dfrac{43}{100}\times 68\\\\C=29.24\ \text{grams}](https://tex.z-dn.net/?f=C%3D%5Cdfrac%7B43%7D%7B100%7D%5Ctimes%2068%5C%5C%5C%5CC%3D29.24%5C%20%5Ctext%7Bgrams%7D)
Hence, it will have 29.24 grams of cocoa.
Answer:
4.5
Step-by-step explanation:
If 2/5 is blue, that means 3/5 is white. Now I convert it to a decimal: 0.6. That means 60% of the paint is white, so I can do 7.5*0.6 to find how much white paint was in there. Click thanks and Brainliest if it helped! Have an awesome day :D
Answer:
Its asking you to multiply 5 and 3 together
5 x 3 = 15