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kolbaska11 [484]
3 years ago
11

Can someone please help me with this math question

Mathematics
1 answer:
Anni [7]3 years ago
3 0

Answer:

Step-by-step explanation:

A). From the table of relative frequencies,

Let the relative frequency of women who prefer mineral water = x

Total of relative frequencies of women preferring purified water and mineral water = 0.59

Since, Total of relative frequencies of women who prefer purified water and mineral water = Relative frequency of women preferring purified water + Relative frequency of women preferring mineral water

0.59 = 0.14 + x

x = 0.59 - 0.14

x = 0.45

B). Relative frequency of men  who prefer mineral water = 0.13

Let the frequency of men who prefer mineral water = x

Since, relative frequency = \frac{\text{Frequency}}{\text{Total of frequencies}}

0.13 = \frac{x}{200}

x = 200 × 0.13

x = 26

Therefore, number of shoppers who are men and prefer mineral water = 26

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Travka [436]

Pierre can make 3 liters of chocolate sauce from 450 grams of chocolate.

Step-by-step explanation:

Given,

Chocolate used to make 200 ml of chocolate sauce = 30 grams

Ratio of chocolate to milliliters of chocolate sauce = 30:200

Let,

x be the milliliters of sauce made from 450 grams of chocolate

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30*x=200*450\\30x=90000

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450 grams of chocolate will make 3000 milliliters of chocolate sauce.

We will convert this in liters.

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Pierre can make 3 liters of chocolate sauce from 450 grams of chocolate.

Keywords: ratio, proportion

Learn more about proportion at:

  • brainly.com/question/1414350
  • brainly.com/question/1418853

#LearnwithBrainly

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