A)8,atomic number also means proton number
Answer: Her measuring cup has 8.25 mL of medicine.
Step-by-step explanation:
As per given,
In 11 mL of medicine, there are 20 drops.
That means quantity in 1 drop =
mL
Now , the quantity in 15 drops = 15 x quantity in 1 drop
= ![15\times\dfrac{11}{20}](https://tex.z-dn.net/?f=15%5Ctimes%5Cdfrac%7B11%7D%7B20%7D)
![=\dfrac{33}{4}](https://tex.z-dn.net/?f=%3D%5Cdfrac%7B33%7D%7B4%7D)
= 8.25 mL
Hence, her measuring cup has 8.25 mL of medicine.
Each method works diffrently the angles inside them is what matters.
Step-by-step explanation:
Case 1 :
![3x + 2y = 6 \\ 4x + y = 2 \\ 3x = 6 - 2y \\ x = \frac{6 - 2y}{3} = \\ x = 2 - \frac{2y}{3} \\ 4(2 - \frac{2y}{3} ) + y = 2 \\ 8 - \frac{8y}{3} + y = 2 \\ - 1.67y = - 6 \\](https://tex.z-dn.net/?f=3x%20%2B%202y%20%3D%206%20%5C%5C%204x%20%2B%20y%20%3D%202%20%5C%5C%203x%20%3D%206%20-%202y%20%5C%5C%20x%20%3D%20%20%5Cfrac%7B6%20-%202y%7D%7B3%7D%20%20%3D%20%5C%5C%20x%20%3D%202%20-%20%20%5Cfrac%7B2y%7D%7B3%7D%20%20%5C%5C%204%282%20-%20%20%5Cfrac%7B2y%7D%7B3%7D%20%29%20%2B%20y%20%3D%202%20%5C%5C%208%20-%20%20%5Cfrac%7B8y%7D%7B3%7D%20%20%2B%20y%20%3D%202%20%5C%5C%20%20-%201.67y%20%3D%20%20-%206%20%5C%5C%20)
![y = 3.59 \\ x = 2 - \frac{2y}{3} \\x = 2 - \frac{2 \times 3.59}{3} \\ \\ x = - 0.39](https://tex.z-dn.net/?f=y%20%3D%203.59%20%5C%5C%20x%20%3D%202%20-%20%20%5Cfrac%7B2y%7D%7B3%7D%20%20%5C%5Cx%20%3D%20%202%20-%20%20%5Cfrac%7B2%20%5Ctimes%203.59%7D%7B3%7D%20%20%5C%5C%20%20%5C%5C%20x%20%3D%20%20-%200.39)
Case 2 :
![3x + 2y = 6 \\ 4x - y = 2 \\ x = 2 - \frac{2y}{3} \\ 4(2 - \frac{2y}{3} ) - y = 2 \\ 8 - \frac{8y}{3} - y = 2 \\ - 3.67y= - 6 \\ y = 1.63](https://tex.z-dn.net/?f=3x%20%2B%202y%20%3D%206%20%5C%5C%204x%20%20-%20%20y%20%3D%202%20%5C%5C%20x%20%3D%202%20-%20%20%5Cfrac%7B2y%7D%7B3%7D%20%20%5C%5C%204%282%20-%20%20%5Cfrac%7B2y%7D%7B3%7D%20%29%20-%20y%20%3D%202%20%5C%5C%208%20-%20%20%5Cfrac%7B8y%7D%7B3%7D%20%20-%20y%20%3D%202%20%5C%5C%20%20%20-%203.67y%3D%20%20-%206%20%5C%5C%20y%20%3D%201.63)
![x = 2 - \frac{2y}{3} \\ x = 2 - \frac{2 \times 1.63}{3} \\ x = 2 - 1.087 \\ x = 0.913](https://tex.z-dn.net/?f=x%20%3D%202%20-%20%20%5Cfrac%7B2y%7D%7B3%7D%20%20%5C%5C%20x%20%3D%202%20-%20%20%5Cfrac%7B2%20%5Ctimes%201.63%7D%7B3%7D%20%20%5C%5C%20x%20%3D%202%20-%201.087%20%5C%5C%20x%20%3D%200.913)
Its C because the 18in is the height, the 12in is the width, the 24in is the length. Which you just multiply together.