1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
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
You might be interested in
You do a study of hypnotherapy to determine how effective it is in increasing the number of hours of sleep subjects get each nig
umka2103 [35]

Answer:no

Step-by-step explanation:

jolu frcu

3 0
3 years ago
QUICKLY HELP! Which relationship between x and y in the equation shows a proportional relationship?
Darina [25.2K]
Y = 12x is a direct variation which is a proportion.
As x increases y also increases.
3 0
2 years ago
Winning the jackpot in a particular lottery requires that you select the correct four numbers between 1 and 42 ​and, in a separa
NARA [144]

Answer:

\dfrac{1}{3,357,900}

Step-by-step explanation:

There are

C^{42}_4=\dfrac{42!}{4!(42-4)!}=\dfrac{42!}{4!\cdot 38!}=\dfrac{38!\cdot 39\cdot 40\cdot 41\cdot 42}{2\cdot 3\cdot 4\cdot 38!}=39\cdot 10\cdot 41\cdot 7=111,930

different ways to select the  four numbers between 1 and 42. Only one of this ways is correct (successful to win).

There are 30 different ways select the single number between 1 and 30. Only one of them is correct.

The  probability of winning the jackpot is

\dfrac{1}{111,930}\cdot \dfrac{1}{30}=\dfrac{1}{3,357,900}

4 0
3 years ago
Read 2 more answers
PLS HELP! (THE QUESTION IS A PICTURE CLICK ON THE QUESTION FIRST)
allsm [11]
All triangles angles in the inside add up to 180, so 180-76-72=32
8 0
2 years ago
C = 14 a = 9 b = ?<br><br> if c is the hypotenuse of a right triangle, find the missing side.
NARA [144]
B = √(14² - 9²) = √(196-81) = √115 ≈ 10.7 units
6 0
3 years ago
Other questions:
  • matthew has 18 sets of baseball cards. each set has 12 cards. about how many baseball card does matthew have
    10·2 answers
  • So the equation 2x + 4 equals 3x -2
    9·1 answer
  • A box contains 4 white balls and 5 red balls. I draw 3 of them out of the box, one at a time, without replacement. What is the p
    6·1 answer
  • PLZZZ HELP???.......
    5·1 answer
  • Joey has 39 pieces of candy if Sally asked joey for 5 pieces, Sam ask for 10, and John ask for 6, but sally got 4 more than Sam.
    13·1 answer
  • Help me please ASAP!! :(
    10·1 answer
  • How to solve 18=3.75+1/4t
    7·1 answer
  • Apply the correct label to indicate the result of each event for the dollars-per-yuan exchange rate between the United States an
    14·1 answer
  • Emily deposited $250 in a new account at her bank.
    5·1 answer
  • What does not represent an integer
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!