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3 years ago

Question 1 Hannan wants to estimate the number

Mathematics

1 answer:

Mama L [17]3 years ago

4 0

Answer:

2000 eels

Step-by-step explanation:

Let us represent the total estimate of the eels = x

She returns the 50 eels to the lake.

The next day Hannah catches 400 eels, of these 400 eels, 10 are ringed.

To solve the above question, we have the following:

50/x = 10/400

Cross Multiply

10x = 50 × 400

x = 50 × 400/10

x = 2000 eels

Therefore, the total estimate of the eels in the lake = 2000 eels

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Solving Linear equations 25 =x + 19

soldi70 [24.7K]

Steps to solve:

25 = x + 19

~Subtract 19 to both sides

6 = x

Best of Luck!

3 0

3 years ago

Read 2 more answers

At a resting pulse rate of 75 beats per minute, the human heart typically pumps about 73 mL of blood per beat. Blood has a densi

Kaylis [27]

Answer:

There is approximately 5.475 liters of blood in the body.

Step-by-step explanation:

At a resting pulse rate of 75 beats per minute, the human heart typically pumps about 73 ml of blood per beat.

73 ml in liters = $73\times0.001=0.073$ liters

Now, 75 beats/min x 0.073 liters/beat = 5.475 liters/min

And 5.475 liters/min x 1 min/body = 5.475 liters/body

Hence, there is approximately 5.475 liters of blood in the body.

7 0

3 years ago

Five less than three times a number

Radda [10]

That would turn into 3x-5

4 0

3 years ago

I need sum help please and thanks :)

Leona [35]

Answer:

6/16n is your answer I think

4 0

3 years ago

Suzy is ten years older than Belly, and the next year she will be twice as old as Billy. How old are they now? Show solution.

Snezhnost [94]

Answer:

I understand there is a typo, so Belly and Billy are the same person. His age is represented as B, and Suzy's as S.

S = 19

B = 9

Step-by-step explanation:

Suzy is ten years older than Belly:

(1) S = B + 10

the next year she will be twice as old as Billy

(2) S + 1 = 2 (B + 1)

solving the system of equation (1) and (2):

Making (2) - (1):

1 = 2 (B + 1) - B - 10 => 1 = 2 B + 2 - B - 10 => 1 = B - 8 => B = 9

replacing in (1) S = 19

5 0

3 years ago