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3 years ago

Explain how to use equivalent ratios to find 125% of 200.

2 answers:

7 0

125 of 200 can be wriiten as:
125
200
Multiply both numerator & denominator by 100

125
200
×
100
100
=
62.5
100
= 62.5%
If you are using a calculator, simply enter 125÷200×100 which will give you 62.5 as the answer.

expeople1 [14]3 years ago

3 0

Write 125% as the ratio 125/100. To find an equivalent ratio, you know that 100 times 2 = 200, so 125 x 2 will give you the answer. 125 x 2 = 250. 125% of 200 is 250.

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7.5 4.2

Studentka2010 [4]

✡ Answer: x=6.72 ✡

- - Solve:

- - First step is to cross-multiply:
- $7.5*x=4.2*12$
- $7.5x=50.4$

- - The next step is to divide both sides by the number 7.5
- $\frac{7.5x}{7.5} = \frac{50.4}{7.5} 
$


- - x=6.72

✡Hope this helps✡

3 0

2 years ago

Round to 2 decimal places *

EleoNora [17]

Answer: The circumference of the dome is therefore 149.15 feet or 47.5π feet

Step-by-step explanation:

A scale is basically referred to as the ratio of the dimensions of an object as represented in a draft to the real or true dimensions of the object being drafted.

The figure(s) on the left of the ratio sign represents the size and dimensions of the model with respect to the actual size or dimensions of the object. On the other hand, the figure on the right hand size represents the actual dimensions and size of the real object.

So, if an object is being drawn with the ratio, 1cm : 5cm it means that the size of the object is being reduced because every 5cm of the actual object will always be represented by 1cm in the drawing. If the object is being drawn with a scale of 5cm : 1cm then the actual size of the object will be increased in the drawing. That is, for every 1cm in the actual dimensions of the object, there will be a 5cm representation in the drawing.

Now, the architect draws with a scale of 0.25 inches : 1 foot. If the diameter of the hemispherical dome is 23.75 inches in the scale model, then the actual diameter of the dome is:

0.25 inches ------- 1 foot

23.75 inches ------- ? feet

= 23.75/0.25 × 1

= 95 feet

Therefore, the actual diameter of the dome is 95 feet. We are now required to find the circumference of this dome.

The dome is a hemisphere which literally means half of a sphere. So, if the formula for finding the circumference of a sphere is πd, that of a hemisphere will then be πd/2. Since the diameter is already known to be 95 feet, the circumference of the hemisphere =

(π × 95)/2

=47.5π feet

If π = 3.14, then the circumference = (3.14 × 95)/2 = 149.15 feet

The circumference of the dome is 149.15 feet or 47.5π feet

5 0

3 years ago

Multiply. Write a the product as a mixed number

harina [27]

1. 7 1/2

2.5 1/3

3. 7 1/2

4.9 3/5

8 0

3 years ago

Which pair of numbers is relatively prime?

kondor19780726 [428]

Answer:

Step-by-step explanation:

Two numbers are relatively prime when there is no integer greater than one that that is a factor of both of them.

A: 15 and 21 both have a factor of 3.

B: 24 and 49 have no common factors, and therefore, are relatively prime.

C. 35 and 135 both have a factor of 5.

D: 45 and 102 both have a factor of 3.

6 0

3 years ago

2/3 of my cats plus three

gladu [14]

My answer -

3 2/3
Wow you have allot of cats LOL!!!

P.S
Have an AWESOME LGBT DAY !!! :)

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2 years ago