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Daniel [21]
4 years ago
9

People get caffeine from a variety of sources: coffee, tea and caffeine soda. Suppose that among adults, 55% drink coffee, 25% d

rink tea, and 45% drink soda. Furthermore, 15% drink coffee and tea, 25% drink coffee and soda, 5% drink tea exclusively, and 5% drink all three beverage types.
Solve for the following:
1. What percent of adults drink only coffee?
2. What percent of adults drink only soda?
3. What percent of adults drink none of the beverage types?
Mathematics
2 answers:
Gemiola [76]4 years ago
7 0
Thank you for posting your question here at brainly, I hope the answer will help. Below are the answer:

1. What percent of adults drink only coffee? - 20% 
2. What percent of adults drink only soda? - 15% 
3. What percent of adults drink none of the beverage types? - 20% 
Andreas93 [3]4 years ago
5 0
1.) % only coffee = 55 - (15 - 5) - (25 - 5) - 5 = 55 - 10 - 20 - 5 = 20%

2.) % only soda = 45 - (25 - 5) - 5 = 45 - 20 - 5 = 20%

3.) % non of the beverage types = 100 - 20 - 20 - 5 - 10 - 20 - 5 = 20%
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Answer:

10 ft

Step-by-step explanation:

The length of the slide can be determined using Pythagoras theorem

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Answer:

The coordinate of the wells are

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Step-by-step explanation:

The y coordinate of the stream is given by y = 4x^2+17x-32. Also, the y coordinate of the houses are determined by y=-15x+10. We will assume that the houses are goint to be built on the exact position where we build the wells. We want to build the wells at the exat position in which both functions cross each other, so we have the following equation

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Dividing by 2 on both sides, we get

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Recall that given the equation of the form ax^2+bx+c=0 the solutions are

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Taking a =2, b = 16 and c = -21, we get the solutions

x_1 = -4 -\sqrt[]{\frac{53}{2}}

x_2 = -4 +\sqrt[]{\frac{53}{2}}

If we replace this values in any of the equations, we get

y_1 = 70+15\sqrt[]{\frac{53}{2}}

y_2 = 70-15\sqrt[]{\frac{53}{2}}

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Answer:

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Step-by-step explanation:

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