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masya89 [10]
2 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]2 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]2 years ago
5 0
15 tigers and 25 bears
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Mumz [18]

Answer:

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Step-by-step explanation:

4 0
2 years ago
When the new computer lab opened there were 18 computers.by the end of firdt week there were 25 computers. Find the percent of c
aliina [53]

The number of computers increased by 38.9%

Step-by-step explanation:

Number of computers at start of week = Old value = 18

Number of computers by end of week = New value = 25

Change = New value - Old value

Change = 25-18 = +7

The positive sign indicates the increase.

Increase percent = \frac{Change}{Old\ value}*100

Increase\ percent=\frac{7}{18}*100\\\\Increase\ percent=\frac{700}{18}\\\\Increase\ percent= 38.88\%

Rounding off to nearest tenth

Increase percent = 38.9%

The number of computers increased by 38.9%

Keywords: difference, percentage

Learn more about percentages at:

  • brainly.com/question/11015995
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#LearnwithBrainly

3 0
3 years ago
The length of a rectangular garden is 6 feet less than 3 times its width. The area is 360 square feet. What is the length of the
topjm [15]
Width = w
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Equation Area = wl
w (3w-6) = 360
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3 (w^2 - 2w - 120)=0
3(w + 10)(w - 12) = 0
w = -10 & 12
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Answer: -10 and 12. Yet, since this is a measurement, it must be positive so 12 ft
4 0
3 years ago
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Answer:

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Step-by-step explanation:

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V=πr^2h

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V=180πcm³

This is equal to about 565cm³.

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Step-by-step explanation:

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