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gregori [183]
3 years ago
7

Derek has a bird that weighs 3 pounds. Use the double line diagram below to help you determine approximately how many kilograms

this bird weighs.2 lines. The first line is labeled Pounds and has 6 marks, equally spaced apart, and every other mark labeled 3, 5, 7, respectively. The second line is labeled Kilograms and has 6 marks, equally spaced apart, and every other mark labeled, 1, 2, 3, respect
Mathematics
2 answers:
Marysya12 [62]3 years ago
5 0

Answer:

32

Step-by-step explanation:

LenKa [72]3 years ago
3 0

Answer:

the answer is 1.5

Step-by-step explanation:

if you look at the first line it say the first number is 3 right? and then if you look  at the second one the first number is 1 then you look at the middle line right below the 3 which means its a half so add 1 and the half and a half is 0.5 and if you add those two together you get 1.5hope this helps :)

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What is true about the solution above.
Masja [62]

ANSWER

x =  \pm \sqrt{3}

and they are actual solutions.

EXPLANATION

The given equation is:

\frac{ {x}^{2} }{2x - 6}  =  \frac{9}{6x - 18}

Cross multiply

{x}^{2} (6x - 18) = 9(2x -6 )

This implies;

{x}^{2} (6x - 18) - 9(2x - 6) = 0

3{x}^{2} (2x - 6) - 9(2x - 6) = 0

Factor

(3 {x}^{2}  - 9)(2x - 6) = 0

3 {x}^{2}  - 9 = 0 \: or \: 2x - 6= 0

3 {x}^{2}   = 9 \: or \: 2x  = 6

{x}^{2}   = 3\: or \: x  = 3

{x}  =  \pm \sqrt{3} \: or \: x  = 3

The domain of the given equation is

x \ne3

Therefore the actual solutions are

x =  \pm \sqrt{3}

NB: x=3 is not in the domain of the given equation. It cannot be an extraneous solution.

7 0
3 years ago
a pole that is 3.3 M tall casts a shadow that is 1.22 M long at the same time a nearby Tower cast a shadow that is 50.75 M long
jenyasd209 [6]
Since there is no distance between the pole and the base of the tower, we can assume that the pole is at the base of the tower. 
We can create a right triangles between the pole and its shadow and between the tower and its shadow as shown in the figure. Let x be the height of the tower. Since our triangles are similar the ratio between its sides is going to be proportional, so we can establish a proportion to find x:
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x= \frac{(50.75)(3.3)}{1.22}
x=137.27

We can conclude that the tower is 137.27 meters tall.

6 0
3 years ago
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arnold's dog weighs 10 pounds less than twice his brothers dog.The dogs' combined weight is 50 pounds
Harlamova29_29 [7]

Answer:

If I am not wrong Arnold's dog weights 20 and his brother 30 because if the total is 50 add 10 then divide by 3 and you get 30 ( dog of brother)  

50 - 30 = 20

Step-by-step explanation:

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4 years ago
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damaskus [11]
110 liters. 1000ml = 1 liter. Move the decimal 3 places to the left,so 110,000 ml becomes 110 liters.
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3 years ago
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89 is 70% of what number?
expeople1 [14]
Solve 89 = .7x and you will get 127.14
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