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Komok [63]
2 years ago
14

In my fish tank, the ratio of red fish to blue fish is 3:5. There are 20 blue fish. How many red fish are there?

Mathematics
2 answers:
nataly862011 [7]2 years ago
7 0
First, the ratio is 3:5. which means 3 redfish for every 5 bluefish. Since there are 20 bluefish, that means that is 4x more than 3:5. The total number of redfish are 12.
SIZIF [17.4K]2 years ago
3 0
Red fish : blue fish 
    3       :    5
   (x4)       (x4)
    12     :   20

---------------------------------------------------
Answer : There are 12 red fish.
---------------------------------------------------
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Answer:

R(t)=10+0.50t

Step-by-step explanation:

Let t represent the number of years.

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The hourly rates after t years will be 10 plus 0.50t.

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2 years ago
Kirima is building a wall for her snow fort. She first makes a firm base out of snow, and then piles uniformly sized blocks of s
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Answer:

The correct option is;

0.4 represents the height of each block

Step-by-step explanation:

The information given are;

Kirima first builds a firm base of a given height

Kirima is building her wall using uniformly sized bricks

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2 years ago
The solutions to a quadratic equation are x = 2 and x = 7. If k is a nonzero constant, which of the following must be equal to t
Serggg [28]
ANSWER


The correct option is,
k(x - 2)(x - 7) = 0

EXPLANATION

We were given that the solutions of the quadratic equation are
x = 2
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x = 7.

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x - 2

and
x - 7

are factors of the quadratic equation.



This implies that the quadratic equation is of the form,

(x - 2)(x - 7) = 0

We were also told that

k


is a non zero constant.



This means that we can use k to multiply the whole equation and the solution will not be affected.


Our equation now becomes,

k(x - 2)(x - 7) = 0


Hence the correct answer is A.
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