Maddie swims the hundred meter freestyle in 30 seconds what is her average speed in meters per minute

1 answer:

3 0

Answer: 200 meters per minute

Explanation: we know that she can run 100 meters per 30 seconds. the question is asking in terms of minutes, however. we have to convert the seconds into minutes. How many minutes is 30 seconds? well, 60 seconds are in a minute so 30 seconds are in half a minute. 30 seconds = .5 minutes.

Now, we have to find how many meters she runs per minute. this means how many meters she runs in one minute. we create a proportion:

100 meters/ .5 minutes = x meters / 1 minute

we cross multiply to get 100 = .5x

then, we simplify by dividing each side by .5 which equals

200=x

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(Do it if you want BRAINLY) The original height of Khafre's pyramid, next to the Great Pyramid, was about 471 ft. Each side of

Lesechka [4]

We have the base measurement for the triangles composing the sides. We need their altitude.

Imagine a right triangle with these sides:

(1) from the apex of the pyramid to the point on the base directly underneath it (471 ft);

(2) from the middle of base edge to the point underneath the apex (half of 708 ft = 354 ft);

(3) the hypotenuse, the altitude of a triangular side.

Using the Pythagorean Theorem, we find the hypotenuse to be

√(471^2 + 354^2) = about 589.2 feet

Now we add up the four triangles' areas. Each is base * altitude / 2, so:

4 x 708 x 589.2 / 2

= 2 x 708 x 589.2

= 834,307.2 square feet, the lateral area.

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3 years ago

What is the mean of the following set of numbers rounded to the nearest whole number?

timama [110]

The mean is when you add up all the numbers and divide by the amount of numbers there are.
143+312+41+28+308+619+321+352+465=2589
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round to the whole number you get
288

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3 years ago

Solve for x. Show each step of the solution. 4.5(8−)+36=102−2.5(3+24) i need to show my work dont just give me the answer

elena-s [515]

4.5 * (8-) + 36 = 102 - 2.5 * 27
4.5 * 8 - 36 = 102 - 2.5 * 27
36 - 36 = 102 - 2.5 * 27
36 - 36 = 102 - 67.5
36 - 36 = 34.5
Since we know 36 - 36 doesn't equal 34.5 its not true so there is NO ANSWER.