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Eddi Din [679]
3 years ago
12

Rewrite the proportion 7:21 = 3:9 as a proportion using fractions.

Mathematics
2 answers:
Fudgin [204]3 years ago
8 0
A :) hope that helped
Margarita [4]3 years ago
3 0

Answer:

a

Step-by-step explanation:

7/21=3/9 bc why would it be anything else?

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Which of the following is the most commonly used measure of central tendency?
dedylja [7]
The answer is Mean: 

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4. Use the diagram below to answer the question
ludmilkaskok [199]

Answer:

≈ 397 m

Step-by-step explanation:

Using Pythagoras' identity on the right triangle

The square on the hypotenuse is equal to the sum of the squares on the other 2 sides.

Let h represent the height of the balloon above ground, then

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EastWind [94]
The answer is c. I believe so
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3 years ago
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Veseljchak [2.6K]
The answer is i think 262.08 miles
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3 years ago
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On a map, 1 inch equals 25 miles.Two cities are 3 inches apart on the map.What is the actual distance between the cities?
SVEN [57.7K]

Answer:

75 miles

Step-by-step explanation:

We are given the scale on the map, which is that 1 inch is 25 miles in real life. We can write that as a ratio of 1 inch: 25 miles. Now say we have two inches, then we have 50 miles because we add on another 25 miles, then we do that again and we get to 75 miles.

Another way to think about it (more complicated):

you can represent ratios as a fraction

so we do 1/25=3/x

To find x, we can do (25*3)/1 which equals 75, if you don't know what I did there then you don't know, sorry!

you can also do it in a different way

same scenario though

you represent it as a fraction

and do 1/25=3/x. We see that the ratio from 1 to 3 is multiplied by 3 so that means the ratio from 25 to x is also going to be multiplied by 3, and 25 multiplied by 3 is 75.

Please let me know if you have any questions.

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3 years ago
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