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2 years ago

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To mix a particular shade of purple paint, red paint and blue paint are mixed in the ratio 5:3. To make 20 gallons of this shade

of purple paint, how many gallons of red and blue paint should be used?

1 answer:

Gelneren [198K]2 years ago

4 0

Answer:

quantity of red paint = 12.5 gallons

quantity of blue paint = 7.5 gallons

Step-by-step explanation:

Ratio of red and blue paint : 5:3

in ratio

a:b = ax:bx

let the

quantity of red paint be 5x

quantity of blue paint be 3x

then quantity of purple paint = quantity of red paint + quantity of blue paint

= 8x

given quantity of purple paint is 20 gallons

thus,

8x = 20

x = 20/8 = 2.5

thus,

quantity of red paint = 5x = 5*2.5 = 12.5 gallons

quantity of blue paint = 3x = 3x*2.5 = 7.5 gallons

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Step-by-step explanation:

Data given and notation

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z would represent the statistic (variable of interest)

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Part a

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Part b

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And the 95% confidence interval would be given (0.00370;0.0243).

And the % would be between 0.37% and 2.43%.

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