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Yanka [14]
3 years ago
5

The ratio of North American butterflies to South American butterflies at a butterfly park is 3 :5

Mathematics
1 answer:
patriot [66]3 years ago
6 0

Answer:A) 18

B) 12

Step-by-step explanation:

The ratio of North America butterflies to South America butterflies at a butterfly park is 5:3. The total ratio is 5 + 3 = 8

Let x represent the total number of south America and north America butterflies. If there are 30 North American butterflies at the butterfly park then,

5/8 × x = 30

5x = 30 × 8 = 240

x = 240/5 = 48

Therefore, the number of south America butterflies are

48 - 30 = 18

The ratio of South America butterflies to European butterflies is 3:2. Total ratio = 3 + 2 = 5

Let y represent the sum of South America and European butterflies. Therefore,

3/5 × y = 18

3y = 5 × 18 = 90

y = 90/3 = 30

Therefore, the number of European butterflies are 30 - 18 = 12

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elena-14-01-66 [18.8K]

Answer:

  1. (0, 4)
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Step-by-step explanation:

In an ordered pair the term before the comma is the x variable and the term after the comma is the y variable.

1.

4x + 3y = 12 . . . . . .(0, _)

here were given the x variable

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y = 4

therefore the ordered pair is <u>(0, 4) </u>

2.

. . . . . . . (-1, _)

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3.

. . . . . . . . (_, 10)

here were given the y variable

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2x = -9

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4 0
2 years ago
I need help with this one <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B3%7D%20" id="TexFormula1" title=" \frac{1}{3} "
Vanyuwa [196]
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2 as a fraction is 2/1 (because 2 divide by 1 is still 2)
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1/3  ÷ 2/1 
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= 1/6          (1 x 1 / 3 x 6)

Or 0.16666.. as a decimal
7 0
3 years ago
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