**Answer:**

** The quantity of acid in the solution is 47.1 ml **

**Step-by-step explanation:**

Given as :

The quantity of solution of acid and water = 357 millimeters

The percentage of acid in the solution = 13.2 %

Let the quantity of acid in the solution = x ml

<u>So, According to question </u>

13.2 % of the total quantity of acid in the solution = x

**I.e x = 13.2 % × 357**

Or, x = × 357

Or, x = 0.132 × 357

**∴ x = 47.124 millimeters**

So , The quantity of acid = 47.1 ml

**Hence The quantity of acid in the solution is 47.124 ml Answer**

9514 1404 393

**Answer:**

19

**Step-by-step explanation:**

If we assume that the car ferries start at or before 6:05, and each 5 minutes thereafter, and if we count the ferries at the dock on either end, the total number seen is the number of ferries encountered in ...

55 +35 = 90 . . . minutes

That is, it is the number already in transit when they leave, plus the number that start while they are traveling.

That's 90/5 +1* = **19 ferries**.

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The attached diagram can give an idea. Each up-sloping line represents a ferry in-transit. The left side is Dumbledore Wharf; the right side is Hogwarts dock. Each horizontal unit represents the distance traveled by a ferry in 5 minutes. Each vertical unit represents a 5-minute interval.

The down-sloping line represents the motorboat travel. The dots at either end of the latter line represent car ferries that are at the dock, just arriving or just-departing. Altogether, there are 17 places where the lines cross, in addition to the boats at the docks.

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* the +1 is because the number of points defining intervals is 1 more than the number of intervals.

sorry i cant help im not there yet im not that high a grade yet

<span>It will effect the number because 1/2 is a whole 50% more than the normal number. </span>