For instance, say you pay $8,000 for goods and sell them for $10,000. Your gross profit is $2,000. Divide this figure by the total revenue to get your gross profit margin: 0.2. Multiply this figure by 100 to get your gross profit margin percentage: 20 percent.

Step-by-step explanation:

7 0

3 years ago

In a volcano, erupting lava flows continuously through a tube system about 15 kilometers to the sea. Assume a lava flow speed o

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Answer:

30 hours

Step-by-step explanation:

The relation between time, speed, and distance is ...

time = distance/speed

time = (15 km)/(0.5 km/h) = 30 h

It takes 30 hours for the lava to reach the sea.

5 0

3 years ago

the figure below is a square . Find the length of side x in simplest radical form with a rational denominator.

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Answer:

$\sqrt{14}$

Step-by-step explanation:

In any square with side length $s$ , the diagonal of the square is equal to $s\sqrt{2}$ . Since the side length of this square is $\sqrt{7}$ , the diagonal is equal to $\sqrt{7}\cdot \sqrt{2}=\boxed{\sqrt{14}}$ .

Alternatively, you can form two 45-45-90 triangles with the diagonal of the square. The diagonal acts as the hypotenuse for the both these triangles, and the legs of both triangles are equal to the side length of the square. To find the length of the diagonal, use the Pythagorean Theorem, which states $a^2+b^2=c^2$ , where $c$ is the hypotenuse of the triangle, and $a$ and $b$ are the two legs of the triangle.