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user100 [1]
3 years ago
10

A new washing machine used 3 2/4 gallons of water per full load to clean cloths. If John washed 2 2/3 loads of clothes, how many

gallons of water would be used?
Mathematics
1 answer:
kumpel [21]3 years ago
7 0
We know that
3 2/4  -------------> is (3*4+2)/4--------> 14/4-------> 7/2
2 2/3 --------------> is (2*3+2)/3--------> 8/3

if a new washing machine used 7/2 gallons of water ------------> one full load <span>cloths
</span> X gallons of water------------------------------------------------------> 8/3 of load cloths<span>
X=(8/3)*(7/2)---------> X=56/6------->28/3 gallons of water
28/3--------> 9 1/3 gallons of water

the answer is
 </span>9 1/3 gallons of water
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Aleksandr-060686 [28]

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E. 0.11

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We have these following probabilities:

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If a person just has a cold, a 90% probability of having a runny nose.

This can be formulated as the following problem:

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It can be calculated by the following formula

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Where P(B) is the probability of B happening, P(A/B) is the probability of A happening knowing that B happened and P(A) is the probability of A happening.

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What is the probability that a person has the flu, given that she has a runny nose?

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P(A/B) is the probability that a person has a runny nose, given that she has the flu. So P(A/B) = 0.99.

P(A) is the probability that a person has a runny nose. It is 0.99 of 0.1 and 0.90 of 0.90. So

P(A) = 0.99*0.1 + 0.9*0.9 = 0.909

What is the probability that this person has the flu?

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The correct answer is:

E. 0.11

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3 years ago
20(20-x)=300 what is x
neonofarm [45]

Answer:

x = 5

Step-by-step explanation:

20(20-x)=300

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20(20-x)/20 = 300/20

2. Simplify.

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3. Subtract 20 from both sides.

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5. Divide both sides by -1.

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6. Simplify.

x=5

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