Answer:
Step-by-step explanation:
add it all up u get -18. then divide it by 4 which is 4.5
A fraction equal to 1/3 is 2/6 so you can draw six circles, and color in two of them
Answer:
22.86 ml.
Step-by-step explanation:
Let x ml of 5% sulfuric solution must Molly add to 20ml of 20% solution to get a 12% solution.
Now, x ml of 5% sulfuric acid solution has pure acid of
ml.
Again, 20 ml of 20% sulfuric acid solution has pure acid of
ml.
Therefore, we can write the equation as
⇒ 0.05x + 4 = 2.4 + 0.12x
⇒ 0.07x = 1.6
⇒ x = 22.86 ml. (Answer) (Approximate value)
Create equivalent fractions:
23/x = 40/17
Cross multiply and divide:
x = 9.8
Answer:
-2019
Step-by-step explanation:
Well you can calculate it.
2018 * 2020 + 1 = 4076361
Square root is 2019.
Since x is negative, the answer is -2019