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Ahat [919]
3 years ago
6

HELPPPPPPPPPPPPPPPPPPP

Mathematics
1 answer:
vodka [1.7K]3 years ago
5 0
The angles of all triangles should always sum up to be 180, so knowing this we can solve this problem using the equation x + 3x + 5x - 54 = 180, first we want to combine all our common variables, so we add the x’s together and get 9x - 54 = 180 then we add +54 to both sides so that the x can be by itself and we have 9x = 234, we divide both sides by 9 and get our final answer of x = 26
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In a study of the population density of bullfrogs, 25 are captured and marked in the first sampling. Five days later, 30 frogs a
mojhsa [17]

Answer:

75

Step-by-step explanation:

Let x represent the number of bullfrogs in the population.

We have been given that in a study of the population density of bullfrogs, 25 are captured and marked in the first sampling. Five days later, 30 frogs are captured, 10 of which have marks.

We will use proportion to solve our given problem as:

\frac{\text{Number of total bullfrogs}}{\text{Number of marked bullfrogs}}=\frac{30}{10}

\frac{x}{25}=\frac{30}{10}

\frac{x}{25}\cdot 25=\frac{30}{10}\cdot 25

x=3\cdot 25

x=75

Therefore, the estimated number of bullfrogs in the population would be 75.

8 0
3 years ago
Add the group of numbers below. Make sure<br> your answer is fully reduced.<br> 1/3+1/5+2/5
RideAnS [48]

Answer:

14/15

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
What is the volume, in cubic centimeters, of a right rectangular prism that has a lenght of 4 centimeters, a width of 9 centimet
Temka [501]

Answer:

The volume of the prism is 360 cm^3.

Step-by-step explanation:

The rectangular prism is a three dimensional figure formed by six rectangular faces. It's volume is given by the product of it's three dimensions. The calculation for the volume of this prism is shown bellow:

volume = width*height*length

volume = 9*10*4

volume = 360 cm^3

The volume of the prism is 360 cm^3.

7 0
3 years ago
Read 2 more answers
12) Anna is putting a ribbon around a
m_a_m_a [10]

Answer:

Yes por dentro desta resposta concluímos que sim é vdd

6 0
2 years ago
What is the equation
stiks02 [169]

Answer:

(X+6)(X+8)=99

X²+14X+48-99=0

X²+14X-51=0

X²+17X-3X-51=0

X(X+17)-3(X+17)=0

(X+17)(X-3)=0

X=3 cm is the answer

3 0
3 years ago
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