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kherson [118]
3 years ago
8

The ratio of adults to children attending a new exhibit at the museum was found to be 8:5. Based on this ratio, if 390 people at

tended one day, how many would be children?
Mathematics
2 answers:
Zinaida [17]3 years ago
6 0
8x+5x=390\\
13x=390\\
x=30\\\\
5x=5\cdot30=\boxed{150}
Makovka662 [10]3 years ago
6 0
The fastest method would be to add 8+5 and then divide 390 by it. And then that would be your base unit which you multiply to 8 and 5 to get your answers

8+5=13
390/13
30
30x8=240 adults
30x5=150 children
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xz_007 [3.2K]
Hey there! :D

Let's find what Cheyenne runs in 10 minutes. 

Divide 5.6 by 4. 

5.6/4= 1.4

Multiply that by 6. (there are 60 minutes in an hour)

1.4*6= 8.4

"B" is the answer.

I hope this helps!
~kaikers
8 0
3 years ago
3 connecting lines are shown. Line D F is horizontal. Line D E is about half the length of line D F. Line F E is about one-third
mars1129 [50]

The inequality that explains why the three segments cannot be used to construct a triangle is ED + EF < DF

<h3>Inequalities </h3>

From the question, we are to determine which of the given inequalities explains why the three segments cannot be used to construct a triangle

From the given information,

Line DE is about half the length of line DF

That is,

ED = 1/2 DF

Also,

Line FE is about one-third of the length of line DF

That is,

EF = 1/3 DF

Then, we can write that

ED + EF = 1/2DF + 1/3DF

ED + EF = 5/6 DF

Since,

5/6 DF < DF

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ED + EF < DF

Hence, the inequality that explains why the three segments cannot be used to construct a triangle is ED + EF < DF

Learn more on Inequalities here: brainly.com/question/1447311

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5 0
2 years ago
5x + 2y = 7 y = x + 1 What is the solution set of the given system? {(5/7, 12/7)} {(12/7, 5/7)} {(9/7, 16/7)} {(16/7, 9/7)}
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5x+2y=7

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5x+2(x+1) =7

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Answer:

x=7

Step-by-step explanation:

2(x+5)=24

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2x +10=24

    -  10  -10

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2x/2x  14/2x

x=7

Hope this helps :)

4 0
2 years ago
If you solve this you are a genius.... Mr.SMITH had 4 daughters , each daughter had a brother... How many children does Mr. Smit
posledela

Answer:

He has 5 children

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