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jeka94
3 years ago
7

Is the table proportional?

Mathematics
1 answer:
inysia [295]3 years ago
5 0
No. In order to be proportional, y must change directly with x.

Looking at the first two pieces of data, let's find the ratio between x and y.

2/5 and 3/6. These should be equivalent of the table is proportional.





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213 is 30% of what amount
WITCHER [35]
Start by calling the unknown amount 'x'. We can then set up a relationship to represent the question:

213 = (30\%) \times x
or
213=0.3x

and then solve for x, by dividing both sides of our equation by 0.3

\frac{213}{0.3}=\frac{0.3x}{0.3}
710=x

213 is 30% of 710

To check: 710 \times 0.3 = 213
3 0
3 years ago
The state medical school has discovered a new test for tuberculosis. (If the test indicates a person has tuberculosis, the
Inessa [10]

The probability according to the given scenario is:

(a) <em>0.0395</em>

(b) <em>0.95</em>

(c) <em>0.076</em>

The given values are:

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(a)

The probability that the  b/w has tuberculosis as well as having (+) test will be:

→ P(A \cap B) = P(B/A).P(A)

By substituting the values, we get

→                  = 0.79\times 0.05

→                  = 0.0395

(b)

The probability that a person does not have tuberculosis will be:

→ P(A') = 1-P(A)

→            =1-0.05

→            = 0.95

(c)

The person does not have tuberculosis as well as have a (+) test, the probability will be:

→ P(A' \cap B) = P(A').P(B/A')

→                  = 0.95\times 0.08

→                  = 0.076

Learn more:

brainly.com/question/14816227

8 0
2 years ago
Which is an example of an algebraic expression?
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Alexxandr [17]
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4 0
3 years ago
Read 2 more answers
I do not have the energy to do this, someone help please?
matrenka [14]
Separate into two groups
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