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
Andreyy89
3 years ago
10

ben has 3 times as many guppies as goldfish.  If he has a total of 20 fish, how  mauy guppies does he have

Mathematics
2 answers:
Nitella [24]3 years ago
7 0
x-the  \ number \ of \ goldfishes \\ 3x-the \ number \ of \ guppy \ fishes \\\\ x+3x=20 \\\\ 4x=20 \\\\ \boxed{x=\frac{20}{4}=5 } \\\\ 3*5\to\boxed{15 \ guppy \ fishes}
NISA [10]3 years ago
3 0
Let,
the number of guppies be x
the number of goldfish be y
Since, Ben has 3 times as many guppies as goldfish, we can write,
x = 3y.............................equation (1)
Also,
It is given that he as total of 20 fish. So, we can say that,
x + y = 20
3y + y= 20..........substituting value of x from equation (1)
4y = 20
Divide both sides by 4 to get y by itself,
y = 20 / 4
y = 5

Now, 
x = 3y
x = 3 * 5
x = 15

Since, number of guppies is x, we can say that he has 15  guppies
You might be interested in
Explain how counting number of girls in five children family can be treated as a binomial experiment. What assumptions are neces
Juliette [100K]

This is a binomial experiment and you'll use the binomial probability distribution because:

  1. There are two choices for each birth. Either you get a girl or you get a boy. So there are two outcomes to each trial. This is where the "bi" comes from in "binomial" (bi means 2).
  2. Each birth is independent of any other birth. The probability of getting a girl is the same for each trial. In this case, the probability is p = 1/2 = 0.5 = 50%
  3. There are fixed number of trials. In this case, there are 5 births so n = 5 is the number of trials.

Since all of those conditions above are met, this means we have a binomial experiment.

Some textbooks may split up item #2 into two parts, but I chose to place them together since they are similar ideas.

8 0
3 years ago
Which of these are duties of the SEC? Check all that apply.
DaniilM [7]
 <span>overseeing the actions of brokers and financial advisers
</span><span> ensuring the security and fairness of mutual funds and exchanges
</span><span>bringing suits against businesses that are not following securities laws</span>
5 0
3 years ago
Read 2 more answers
What is 1/8 divided by 3/4?​
nataly862011 [7]

Answer:

1 / 6 is the answer in fraction form and 0 . 16 as decimal form.

Step-by-step explanation:

1 / 8 ÷ 3 / 4

= 1 / 8 × 4 / 3

= 1 / 2 × 1 / 3

= 1 / 6

hope this answer will help you

6 0
3 years ago
The formula of the triagle​
Feliz [49]

a+b+c divided by 2 :))))

7 0
3 years ago
Can you help me with this question??
Cloud [144]

Answer:

9.42

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Other questions:
  • A regular hexagon is inscribed in a circle as shown. Determine the measure of FE
    15·2 answers
  • Find the equations of the two tangents to the curve y= 2x2 + 18 which pass through the origin.
    5·1 answer
  • What would the work and answer Bc for number 1.
    10·1 answer
  • Last week, Matt's Diner sold 12 milkshakes with whipped cream on top and 8 milkshakes without whipped cream. What percentage of
    8·1 answer
  • Andrew makes 11 saves in 2 soccer games. He made 8 saves in the first game. How many saves did Andrew make in the second game? M
    12·1 answer
  • -8 = -(x + 4)<br> Just the answer is fine. No need to show work.
    15·2 answers
  • At which values of x does the function F(x) have a vertical asymptote? Check
    15·1 answer
  • Can someone plz help me on this I’m bad at doing these plz I bed u I beg u plz
    10·2 answers
  • Find the next 3 terms 3/4, 1/2, 1/4, 0
    15·1 answer
  • NO SCAM PLEASEEEE
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!