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masya89 [10]
3 years ago
13

In the forest were lions and tigers and bears. The ratio of lions to tigers was 4 to 5. The ratio of tigers to bears was 3 to 5.

If there were 12​ lions, how many bears were​ there? ​(Hint​: First find how many tigers there​ were.)
Mathematics
2 answers:
Marianna [84]3 years ago
8 0
Lions to tigers=4:5
lions=12
12=4 units
divide by 4
3=1 unit
tiger=5 untis
3=1 unit
tmes 5
15=5unit=tigers


15=tigers

tigers to bears=3:5
tigers=3 units=15
15=3unit
divide by 3
5=1unit
bears=5unit
5=1unit
times 5
25=5unit=bears

25 bears
VikaD [51]3 years ago
5 0
15 tigers and 25 bears
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Andru [333]

Answer:

The second option is the incorrect:

2) 4d3 – 4d2 – 9d + 9 = (d – 1)(2d – 3)^2

Step-by-step explanation:

Let's check each one of the factorizations:

1) x3 + 5x2 + 4x + x2 + 5x + 4 = (x + 4)(x + 1)^2

(x + 4)(x + 1)^2 = (x + 4)(x2 + 2x + 1) = x3 + 6x2 + 9x + 4

x3 + 5x2 + 4x + x2 + 5x + 4 = x3 + 6x2 + 9x + 4

This one is correct.

2) 4d3 – 4d2 – 9d + 9 = (d – 1)(2d – 3)^2

(d – 1)(2d – 3)^2 = (d - 1)(4d2 - 12d + 9) = 4d3 - 16d2 + 21d - 9

4d3 – 4d2 – 9d + 9 = 4d3 - 16d2 + 21d - 9

This one is incorrect.

3) 27h3 – 8k3 = (3h – 2k)(9h2 + 6hk + 4k2 )

(3h – 2k)(9h2 + 6hk + 4k2 ) = 27h3 - 8k3

This one is correct.

4) 64 – 9t2 = (8 + 3t)(8 – 3t)

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This one is correct.

So the incorrect option is the second one.

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alekssr [168]

D. people do not have to have a good or service that another person wants

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20079.05 cm^2,

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Answer:

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AURORKA [14]

Answer:

(9, 0)

Step-by-step explanation:

Maximum or minimum value occurs at the Corner. The points given are (0, 8), (5, 4) and (9, 0).

Substitute (0, 8) in the objective function.

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