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pentagon [3]
3 years ago
6

Can someone help me solve this proportion: 5/n=1.5/1.8

Mathematics
2 answers:
Jet001 [13]3 years ago
5 0
\frac{5}{n} =\frac{1.5}{1.8} \\ \\ n\neq 0 \\ \\1.5n=5\cdot 1.8\\ \\1.5n= 9 \ \ / : 1.5 \\ \\ n=6


adoni [48]3 years ago
5 0
5/n = 1.5/1.8 Multiply each side by 'n': 5= 1.5n/1.8 Multiply each side by 1.8 : 9 = 1.5n Divide each side by 1.5 : 6 = n =====<=======<== Easier: 5/n = 1.5/1.8 Perform the division on the right side: 5/n = 5/6 Multiply each side by 'n' : 5 = 5n/6 Multiply each side by 6 : 30 = 5n Divide each side by 5 : 6 = n
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How do you write 210% as a decimal?
mixas84 [53]

Answer:

I believe it is 2.1 if I am wrong, very sorry.

Step-by-step explanation:

So you divide 200 by 100 so 210/100, thats when you get 2.1. So to convert that from percent to decimal all you do is is just divide by 100 and remove the % sign! Just move the decimal point 2 places to the left. If the percent value is a integer, the '.' is at the right of the right most digit.

Hope this helped you out and hope you got your answer right! Enjoy the rest of your day. :)


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3 years ago
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BabaBlast [244]

Answer:

✓9/4,5/3,✓5,2.5

Step-by-step explanation:

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The results of a recent survey of 1500
ddd [48]

Answer:

A) <u>7 : 13</u> is the ratio .

B) <u>69.65 million </u>approve of George W. Bush.

Step-by-step explanation:

Given:

The results of a recent survey of 1500  American adults show that 525 approve of the   job that President George W. Bush is doing  and 975 do not approve.

Now, to find the ratio of the people approve to those that do not. And number of people approve of George W, if there are 199 million adults in the United States.

<h2>A)</h2>

People approve of the job = 525.

People do not approve of the job = 975.

So, the ratio of that approve to those that do not:

525:975

=\frac{525}{975}

<em>On simplifying it:</em>

=\frac{7}{13}

=7:13.

Thus, the ratio is 7 : 13.

<h2>B)</h2>

If the adults in the United States is 199 million.

Let the people approve be x.

According to survey 525 out of 1500 approve of the job.

So, 525 is equivalent to 1500.

Thus, x is equivalent to 199,000,000. (1 million = 1,000,000.)

Now, to solve by using cross multiplication method:

\frac{525}{1500} =\frac{x}{199,000,000}

<em>By cross multiplying we get:</em>

<em />104,475,000,000=1500x<em />

<em>Dividing both sides by 1500 we get:</em>

69,650,000=x\\\\x=69,650,000.

Thus, number of people approve are 69.65 million.

Therefore, 69.65 million approve of George W. Bush.

8 0
3 years ago
The ratio of the number of male lions to female lions in the animal reserve is 21:20. If there are 123 lions in the animal reser
Vanyuwa [196]
21 + 20 = 43

Total is 123, so divide by 43.

123/43 = 2.86 rounded to 3.

(females) 20 x 3 = 60 female lions 
7 0
3 years ago
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