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
Arturiano [62]
3 years ago
14

A fish tank contains tetras,guppies,and minnows. The ratio of tetras of guppies.Is 4:2.The ratio is minnows of guppies is 1:3. T

here are 60 fish on the fish tank. How many more tetras are there then minnows .
Mathematics
1 answer:
oksano4ka [1.4K]3 years ago
4 0

Answer:

30

Step-by-step explanation:

Let number of tetras be "t"

number of guppies be "g"

number of minnows be "m"

Ratio of tetras to guppies is 4:2, or reducing, 2:1. Thus we can write:

\frac{t}{g}=\frac{2}{1}\\t=2g

Ratio of minnows to guppies is 1:3, so we can write:

\frac{m}{g}=\frac{1}{3}\\g=3m

or, m = g/3

Also, total there are 60 fish, so we can write:

t + g + m = 60

or

2g + g + g/3 = 60

Solving this, we can solve for g. Shown below:

2g+g+\frac{g}{3}=60\\3g+\frac{g}{3}=60\\\frac{9g+g}{3}=60\\10g=180\\g=18

Now, finding t and m:

m = g/3 = 18/3 = 6

m = 6

and

t = 2g

t = 2(18)

t= 36

There are 36 tetras and 6 minnows. So, there are

36 - 6 = 30 more tetras than minnows

You might be interested in
There are 2.54 centimeters in an inch how many inches are in 51.78 centimeters round to the nearest tenths
erik [133]
2.54 cm in 1 inch......how many inches in 51.78 cm...

51.78 / 2.54 = 20.4 inches <==

or this way...
2.54 / 1 = 51.78 / x....2.54 cm to 1 in = 51.78 cm to x inches
cross multiply
(2.54)(x) = 51.78)(1)
2.54x = 51.78
x = 51.78 / 2.54
x = 20.4 inches <==
3 0
3 years ago
The reasures of two angles have a sum of 180°. The measures of the angles are in a ratio of 5:1. Determine the measures of both
Mademuasel [1]

Answer:

150° : 30°

Step-by-step explanation:

total ratio

5 + 1 = 6

ratio 1

180 ÷ 6 = 30

ratio 5

30 × 5 = 150

3 0
2 years ago
A laptop computer sells for $850. the sales tax is 7%. what is the total cost of the laptop?
evablogger [386]

Answer:

$909.50

Step-by-step explanation:

$850 x 7% = $59.50 (tax amount)

850 x (1+ 0.07) = $909.50

4 0
3 years ago
I’ll mark the brainiest
baherus [9]

Answer:

AB=3.16

BC=6.32

CD=3.16

AD6.32

Step-by-step explanation:

6 0
2 years ago
Bob rides his bike from his house to a friend's house. After riding 9 miles, he realizes he has traveled 3/4 of the way. How far
o-na [289]

Answer:

12 miles

Step-by-step explanation:

sorry if im wrong

8 0
3 years ago
Other questions:
  • The probability that all four test subjects had a true negative test result when they are randomly selected without replacement
    13·1 answer
  • Bo buys a 3 pound bag of trail mix for a hike.He wants to make one-ounce bags for his friends with whom he is hiking.How many on
    6·1 answer
  • Describe the similarities and differences between the percent proportion and the percent equation.
    15·1 answer
  • If a square has an area of 64 square centimeters, what is its perimeter?
    7·2 answers
  • Determine whether the table represents a linear function, an exponential growth function, an exponential decay
    10·1 answer
  • YESSIR HOOD MEALS FOR LIFE
    6·2 answers
  • A printer Prints 4 pages vper minute. How long would it take to print 204 pages​
    11·2 answers
  • Through: (3,-1) and (-5, 5)
    12·1 answer
  • Autumn bought a square frame for her desk that has an area of 361 square units.
    7·1 answer
  • Can someone help me with question
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!