2x + 12 = 18
18 - 12 = 6
2x = 6
x = 3
Answer:
130 milliliters.
Step-by-step explanation:
a drug has a ratio of 115mg:5ml. This is equivalent to 23mg:1ml. 3g=3000mg, so we divide 3000 by 23 to get 130.434783. That is how many milliliters are needed. We round it to get 130 mL.
4.5 x 10.2 = 45.9 km of road

This is the problem that we need to solve. The best way to get about it is to first:
- Multiply the constant numbers (3 and 17). 3×17 is 51.
- Next multiply the radicals.

- Simplify the squareroot of 108 since it is 49 times 2. It would be equal to 7 squareroots of 2.
- Our final answer would be:

- 51 x 7 is 357, so the answer above is right.
The skills needed are multiplication, mulitplication of radicals, and simplifying radicals, so if you want to review anything use these as reference.
Hope you understood and have a nice day!!