Explain how the percent equation relates proportional quantities

1 answer:

7 0

Use cross product to determine if the two ratios form a proportion. Here we can see that 2/16 and 5/40 are proportions since their cross products are equal. Percent means hundredths or per hundred and is written with the symbol, %. Percent is a ratio were we compare numbers to 100 which means that 1% is 1/100.

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2. solve 4w − 7k = 28 for k. show your work

NISA [10]

4w-7k=28
-7k+4w+-4w=28+-4w
-7k=-4w+28
-7k/-7=-4w+28/-7
k=4/7w-4

:)

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Click an item in the list or group of pictures at the bottom of the problem and, holding the button down, drag it into the corre

GaryK [48]

Explanation
: the answer is m=f

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(16 points) (geometry) i need help plzzzzz

Rom4ik [11]

Answer:sry I don’t get tht type of math if I did I would of helped u sry :( but I hope u have a wonderful Christmas break ❄️

Step-by-step explanation:

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gregori [183]

Answer:

Step-by-step explanation:

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2 years ago

Question 5(Multiple Choice Worth 1 points)

azamat

Answer: Second option.

Step-by-step explanation:

As you can observe in the picture given in the exercise, there are two Right triangles formed inside the rectangle: CDA and ABC.

You need to use the Pythagorean Theorem to solve this exercise. This is:

$a^2=b^2+c^2$

Where "a" is the hypotenuse and "b" and "c" are the legs of the Right triangle.

If you solve for one of the legs, you get the following equation:

$a^2-c^2=b^2\\\\b=\sqrt{a^2-c^2}$

In this case, you can identify in the figure that:

$a=AC=65\ m\\\\b=BC=x\\\\c=AB=63\ m$

Finally, you must substitute these known values into the equation $b=\sqrt{a^2-c^2}$ and then evaluate in order to find the value of "x". You get that this is:

$x=\sqrt{(65\ m)^2-(63\ m)^2}\\\\x=16\ m$

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4 years ago