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4 years ago

Ratio that is equivalent to 8:20

Mathematics

2 answers:

djyliett [7]4 years ago

6 0

Answer:

4:10 = 8:20( when multiplied by 2)

24:60 divide by 3 we get 8:20

2:5 multiply by 4 we get 8:20

leva [86]4 years ago

3 0

Answer:

Step-by-step explanation:

25 is equivalent to 820 because 2 x 20 = 5 x 8 = 40. 410 is equivalent to 820because 4 x 20 = 10 x 8 = 80. 615 isequivalent to 820 because 6 x 20 = 15 x 8 = 120.

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Dominik [7]

Answer:

Inferior, Public

Step-by-step explanation:

Complete the sentences regarding demand. The demand for inferior goods increases with a decrease in income, whereas public are goods that cannot be bought or sold.

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4 years ago

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3 years ago

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. Points B and G lie on ⨀O, the radius of ⨀O is 100 miles, and m∠BOG=120°. What is the approximate area of the circle segment en

Mars2501 [29]

You need the area of the sector created by the radii and the intercepted arc minus the area of the triangle created by the central angle of 120 and the segment BG. The area of the sector is, according to our info: $A= \frac{120}{360}*(3.14)(100) ^{2}$ which is 10466.6666. Now we need the area of the triangle which is not as simple. If the central angle of the whole triangle is 120, then if we split it in half and deal with right triangles only, the angle measure is now 60, and we have a 30-60-90 special right triangle. If the hypotenuse (radius) is 100, in our pythagorean triple for that right triangle means that 100=2x and x = 50, which is going to be the side length for the side opposite the 30. That happens to be the height of the triangle, which we need for the area. We also need the base, which according to our Pythagorean triple, being the side across from the 60 degree angle, is 50 sqrt 3. but that's only half the side (we are still dealing with half of the whole triangle) and that means that the length of the whole side is 100 sqrt 3. Now we can find the area of the triangle: $A= \frac{1}{2}(100 \sqrt{3})(50)$ which is $2500 \sqrt{3}$ . Now subtract the area of the triangle from the area of the sector: $10466.666-2500 \sqrt{3} =6136.5$

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4 years ago

The area of a rectangular field is 48m2 and one of its sides is 6m . How long will a lady take to cross the field diagonally at

tatiyna

Answer:

It will take her approximately 28 seconds to cross the diagonal of the pitch

Step-by-step explanation:

If we can find the length of the diameter of the field (in Metres), we can easily find the time it takes her to cross this length using motion equations.

Step one: Find the length of the field from its area.

The field is rectangular in shape. The area of the field is 48m^2. To get the area of the field, we had to multiply its length and its breadth.

i.e area = length X breadth.

Let us assume that the breadth = 6m

its length will be area / breadth = 42/ 6 = 7m

The length of the pitch = 7 m

Step Two: Find the length of the diagonal using Pythagoras' theorem.

From Pythagoras'theorem, the length of the diagonal can be obtained by

$diagonal = \sqrt{l^2 +b^2}$

$diagonal = \sqrt{6^2+ 7^2} = 9.22m$

The length of the diagonal is 9.22m

Step three: Find the time using her speed and the distance she needs to cover.

Time = distance / speed

time = 9.22 /20 = 0.46 minutes

It will take her approximately 28 seconds to cross the diagonal of the pitch

6 0

3 years ago

Can someone give me a legitimate answer to this?

Serggg [28]

Answer:

It would be 31 1/4

Step-by-step explanation:

Since the area is already determined, 6 1/4, you just need to multiply it to the height (5) which is 31 1/4

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3 years ago