1/2*4=2
She walks 2 miles per hour
Answer:
180⁰ 8. 20⁰ 3. rays and angle
Step-by-step explanation:
need ko po ang sagot
Answer:
8.3 feet per minute
Step-by-step explanation:
well take 100 divided by 12 because 12 inches in each foot then you get 8.3 feet per minute
If 
is the unknown concentration of the second solution, then each mL of this solution that is used in the new one contributes 
mL of acid.
There are 40 mL of the new solution, and one quarter is made up of 20% acid while the remaining three-quarters is made up of the solution - that is, 10 mL of a 20% acid solution are used, so that its contribution is 0.2(10 mL) = 2 mL of acid, while 30 mL of the solution are used, so it contributes 
of acid.
In this new solution, we want to get a concentration of 32% acid, so it should contain 0.32(40 mL) = 12.8 mL of acid. Then the total amount of acid in the new solution satisfies
so the second solution has a concentration of 36%. The equation used here is the same as the first choice (a),
Theirs no picture it’s a black screen
