Mathematics College

A company that sold fish for an aquarium had a special one weekend on tetras and angel fish. The store sold a total of 110 of those types of fish over the weekend. The tetras each sold for $0.40 and the angel fish each sold for $1.20. If they made a total of $80 in selling those fish, how many tetras did they sell?

Answers

Answer 1

Answer: They sold 65 tetras.

Step-by-step explanation:

Let x= Number of tetras

y= Number of angel fish.

As per given,

x+y= 110                  (i)

0.40x+1.20y=80         (ii)

Multiply 2.5 on both sides of (ii), we get

x+3y=200        (iii)

Eliminate (i) from (iii)

[tex]2y=90\\\\\Rightarrow y=45[/tex]

Put value of y in (i)

[tex]x+45=110\Rightarrow x=65[/tex]

Hence, they sold 65 tetras.

Related Questions

An Apple grower harvested 3280 green apples and 12220 Red apples in one day. Apples can be boxed at a rate of 500 apples per hour. Many minutes will it take to box all of the apples

Answers

Answer:

1860

Step-by-step explanation:

1)
Last year, a volunteer group collected 72,621 pounds of canned food to donate to others. This year they collected 94,216 pounds
of canned food
How many more pounds of canned food did the group collect this year than last year?

A)
21,595
B)
21,615
C)
22,515
D)
22,615
E)
22,695

Answers

Answer:

A)

21,595

:D :D :D :D

Properties of a rhombus

Answers

Answer:

Properties: Isotoxal figure, Convex polygon

Step-by-step explanation:

In plane Euclidean geometry, a rhombus is a quadrilateral whose four sides all have the same length. Another name is equilateral quadrilateral, since equilateral means that all of its sides are equal in length.

[] divided 1/3 =6/7.

Answers

Answer:

6/21

Step-by-step explanation:

The answer above is correct

find the missing lengths ​

Answers

Answer:

one the women

Step-by-step explanation:

you a one inna million there aint a man like u

ok so thats a 45 45 90 triangle so

45 n
45 n
90 n root 2

hypotenuse (90) is 15 root 2

so do 15 root 2= n root 2
do solve this multiply by root 2 on both sides
so 15 root 2 times root 2= n root 2 times
root 2

so 15 times root 4=n root 4
15 times 2 (cuz sqrt of 4 is 2)=2n (cuz
sqrt of 4 is 2

so 15*2=2n
30=2n
divide by 2 on both sides
15=n

just look at my image its way easier tho

I need help on this question below

Answers

I think it’s the Second one

Which sentence is true?

Answers

Answer:

B

Step-by-step explanation:

Find the value of x.

Answers

Answer:

i think x is 36

Step-by-step explanation:

3x + 2x = 180

Louise buys 1 pack of pencils and 1 box of crayons for her son for $3.39. Elaine buys 7 packs of pencils and 8 boxes of crayons for her students for $25.88.

Answers

Answer:

Step-by-step explanation:

p+c=3.39, p=3.39-c

7p+8c=25.88, using p=3.39-c in this equation gives you

7(3.39-c)+8c=25.88

23.73-7c+8c=25.88

23.73+c=25.88

c=2.15, since p=3.39-c

p=3.39-2.15

p=1.24

So pencils cost $1.24 and crayons cost $2.15

How do you write 3.50 x 102 in standard form?

Answers

357 is your answer because all you do is solve the problem =

Brainly so you better do it right

Answers

Answer:

Step-by-step explanation:

3/32 i did it on my paper then the calculator. please mark me brainliest!!!

Find the Width of the Rectangular Prism.

Answers

Answer:

w = V/12 IN X= 840in then 840÷12 = 70in

A rectangular prism has 70in width having volume 840in³, length is 2in, and height 6in.

What is a rectangular prism?

A rectangular prism or a  cuboid is a three-dimensional closed figure which has volume along with surface area.

The volume of a cuboid is the product of its length, width, and height.

V = (l×w×h).

The total surface area of a cuboid is 2( lw + wh + wl) and the lateral surface area is 2(l + w)×h.

Given, A rectangular prism has a volume 840 in³, its length is 2 in and its height is 6in.

Assuming width to be w in.

∴ (l×w×h) = volume.

(2×w×6) = 840.

12w = 840.

w = 70 in.

learn more about cuboid here :

https://brainly.com/question/19754639

#SPJ2

Which equation is most likely to be for this graph?

Answers

I’d go with B again haven’t done in a while but it should help

help i need help ASAP

Answers

Jane : 6

Lane : 3

Neesa : 213

So I think Jane is 6 inches tall or 1-1/5

My answer can be incorrect also so refer to Chrome too.

At this weekend's soccer game, 20 out of the first 30 people who entered the
field were wearing a team jersey. If this sample is representative of the 240
people attending the game, about how many of them will probably be wearing
jerseys?

Answers

Answer:

160

Step-by-step explanation:

-2х + Зу = 10
5х + бу = -16



Answers

En estas imágenes te dejo las respuestas espero te sirvan

A)
One of its factors is x + 1.
B)
Two of its factors are x + 1.
C)
Three of its factors are x + 1.
D)
All four of its factors are x + 1.

Answers

Answer:

what's the question? .......

Write a linear function f with the values f (3)= -4 and f (5)= -4
f(x)=

Answers

Answer:

Step-by-step explanation:

(3,-4) and (5,-4) are points on the horizontal line f(x) = -4.

Which of the following is equivalent to 3x -2(x -1)>11-9x

Answers

Answer:

x > 9/10 is the answer to the equation.

Step-by-step explanation:

3x -2(x -1) > 11-9x

3x -2x +2 > 11-9x

x+2> 11-9x

x+9x > 11-2

10x > 9

x > 9/10

plz help i will give 30 points

Answers

Answer:

85 degrees

Step-by-step explanation:

since all angles in a parallelogram add up to 360 degrees, and we know that angles M and P are equal, we can double their measures to get 190 degrees. This leaves 170 degrees left to split evenly between angles L and N, making each one 85 degrees.

Warmup 2/16/21(create a table to compare the 2)
.
If you were babysitting, would you rather
Charge $5 for the first hour and $8 for each additional
hour?
bry
SY
.
Or
Charge $15 for the first hour and $6 for each additional
hour?
ebo...
Explain your reasoning.
ng

Answers

The 1st one because you get more money out of it

Evaluate the expressio (4 x 5)2 – 6 + 3 =​

Answers

Answer:

37

Step-by-step explanation:

4x5= 20

20x2= 40

40-6= 34

34+3= 37

Volume of the figures below?

Answers

answer 1: 45m cubed

answer 2: 198ft cubed

pls give brainlest pls & ty :)))

A test worth 100 points has a total of 30 multiple choice and true-false questions. Each multiple choice question is worth 4 points and each true-false item is worth 2 points. How many multiple choice questions and how many true-false questions are on the test?

Answers

Answer:

um

Step-by-step explanation:

A spice rack has ó shelves. Each shelf can display 15 spice jars. How many spice racks does a store need to display 2,250 spice jars?
​

Answers

Answer:

25

Step-by-step explanation:

Each spice rack can hold 90 jars. It will take 25 racks to hold 2,250 jars.

I hope this helps!

Do well!

Mark Brainliest!

Write the expression with a factor of -1.

-3y
-x-y
-6+5b
3-8m

Answers

15b + 22ym = 15 is the answer

write the output that would that would be come from the equation y=-2x+6 if the input is 3

Answers

Answer:

The out put is y =0

Step-by-step explanation:

Given equation y =-2x +6 ..(i)

put x =3 in equation (i)

                   y = -2 (3) + 6

                  y = -6 +6

                  y =0

Let f(x)= 3x - 1 and g(x)=x^2 + 1
Find (f o g) 7).
Then (fog)(7) = 1. (Simplify your answer.)

Answers

Answer:

Step-by-step explanation:

I do not fully understand your question yet

assuming this is what you asked

f(x) = 3x-1 and g(x) = x² +1  

f o g(7)  = f( g(7)) = f( 7² +1) = f( 50) = 3*50 -1 = 149

(f o g) (7) = f(g(x))(7) = f( x²+1)(7) = ( 3x²+3-1) (7) = (3x²+2)(7) ...

Gunnar has 20 m of fabric.He needs 4/5 of meter of fabric cushion.How many cushions can he make from fabric?

Answers

He can make 25 cushions
20 divided by 4/5

PLEASE ANSWER THIS QUESTION RIGHT AND THE ANSWER CHOICES ARE IN THE ORDER.Which is the standard form of a quadratic equation?

Answers

Answer:

Its light blue (cyan).

Step-by-step explanation:

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