Dennis has 5 fish. 2 of the fish are orange and the rest are blue. How many blue fish does Dennis have?

Mathematics

2 answers:

Nana76 [90]3 years ago

5 0

Answer:

3 of the fish are blue

Step-by-step explanation:

5 fish - 2 fish = 3 fish

hope this helps :)

Zielflug [23.3K]3 years ago

4 0

Answer: 3 fish

Step-by-step explanation: Take five, and subtract the two. You will be left with three, which represents the answer. A way to check if your answer is correct is by adding the 3 with the 2 to

make 5. Hope this helps!!

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Break apart the addends to find the sum 18+21

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We break apart the first numer:

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the second:

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18+21=10+8 + 20+1

now, we can mix up the order:

18+21=10+8 + 20+1= 10+20 + 8+1

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18+21=10+8 + 20+1= 10+20 + 8+1=30+9=39

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Aliun [14]

Answer:

The perimeter is 72 units and the area is 149 square units.

Step-by-step explanation:

$\triangle SBA$ has coordinates $S(15,-8),B(-2,21)$ and $A(0,0)$

Using the distance formula.........

Length of side $SB = \sqrt{(15+2)^2+(-8-21)^2}= \sqrt{17^2+(-29)^2}= \sqrt{1130}$

Length of side $BA= \sqrt{(-2)^2+(21)^2}= \sqrt{445}$

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So, the perimeter of the triangle will be: $(SB+BA+AS)= \sqrt{1130}+ \sqrt{445}+17 =71.71... \approx 72$ units. (Rounded to the nearest unit)

The height of the triangle for the corresponding base $SB$ is 8.89 units.

Formula for the Area of triangle, $A= \frac{1}{2}(base\times height)$

So, the area of the $\triangle SBA$ will be: $\frac{1}{2}(\sqrt{1130}\times 8.89)= 149.42... \approx 149$ square units. (Rounded to the nearest unit)