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nataly862011 [7]
2 years ago
5

10. John is mixing paint.He uses black, green and blue in the ratio 6:3: 1. How much of black green and blue paint is needed to

make a mixture of paint of 500ml.
​
Mathematics
1 answer:
Nadusha1986 [10]2 years ago
8 0

The given ratio becomes 6x : 3x : x.

6x = black paint

3x = green paint

x = blue paint

6x + 3x + x = 500

10x = 500

x = 500/10

x = 50

6x = 6(50) = 300

3x = 3(50) = 150

x = 50

Answer:

300 ml of the black paint.

150 ml of the green paint.

50 ml of the blue paint.

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The perimeter of a rectangle is 36m. If its length is increased by 1m and the width is increased by 2m, its area will increase b
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Answer:

  80 m^2

Step-by-step explanation:

The given information lets you write two equations involving length (x) and width (y).

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The second of these equations simplifies to another linear equation, giving a system of linear equations easily solved.

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Dividing the first equation by 2 gives

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3 years ago
the variables x and y have a proportional relatinship and y=2/5 when x=5/8 which equation represents this relationship
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The equation is y = 16/25 x

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equation is:

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<h3>What are proportional relationships?</h3>

Proportional relationships are relationships between two variables where their ratios are equivalent. Another way to think about them is that, in a proportional relationship, one variable is always a constant value times the other. That constant is know as the "constant of proportionality".

<h3>How do you find the proportional relationship in an equation?</h3>

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To learn more about proportional relationship from the given link

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