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ladessa [460]
3 years ago
14

Bill estimates that 20 people will attend the seminar if it does not rain and 12 people will attend if it rains. The weather for

ecast indicates a 40% chance it will not rain and a 60% change it will rain on the day of the seminar. Determine the expected number of people who will attend the seminar.
Mathematics
1 answer:
Rama09 [41]3 years ago
6 0
15 people would show up
You might be interested in
H
timama [110]
I’m not really sure it’s really complicated
4 0
3 years ago
the ratio of red marbles to blue marbles in a bag is 3:4. which of the the following is a possible total number of marbles?
Vitek1552 [10]
3:4
6:8
9:12

if u either multiply or divide a number from one side, u must do the same calculation to the other side. hope that helps :)
8 0
3 years ago
The area of Gateway National Recreation is about twenty-six thousand, six hundred and sixty-three hundredths. Which shows this n
Delicious77 [7]

Answer:

B. 26,606.63

Step-by-step explanation:

The area of Gateway National Recreation Area is about twenty-six thousand, six hundred six and sixty-three hundredths. Which shows this number in standard form? A. 26,606.3 B. 26,606.63

C. 26,660.63 D. 26,666.3

Solution

Break down and writing in numerals of twenty-six thousand, six hundred six and sixty-three hundredths.

Twenty six thousand = 26,000

Six hundred six = 606

Sixty - three hundredth = 0.63

Adding

26,000 + 606 + 0.63

We have

26,606.63

The correct answer is B

5 0
3 years ago
A 100 mL vial of 25% solution is available in stock. An order is recieved for 6 g to be added to 250 mL of fluid for an iv infus
Ne4ueva [31]

9514 1404 393

Answer:

  274 mL

Step-by-step explanation:

Often medical solutions expressed as a percentage are not really a percentage as such. A percentage is the ratio of two quantities with the same units.

Here, the context given by the problem suggests the "25%" solution is really (25 g)/(100 mL). That is, the units are grams and milliliters--different units.

With that assumption, we want to find the volume (v) of solution needed to deliver 6 g of medicine. An appropriate proportion* is ...

  v/(6 g) = (100 mL)/(25 g)

  v = (6 g)(100 mL)/(25 g) = 24 mL

So, the total volume of the infusion is ...

  250 mL +24 mL = 274 mL

_____

* The concentration is given in terms of g/mL, but we have used a proportion that is mL/g. The reason for that is we want the variable to be in the numerator of the ratio. The variable here represents volume, so we have written the proportion with volumes in the numerators.

Having the variable in the numerator means the equation can be solved in one step--by multiplying by its denominator.

3 0
3 years ago
What are the solutions of the quadratic equation?
Oliga [24]

Answer:

d)X=4 or x=-2

Step-by-step explanation:

X²-2x=8

X²-2x-8=0

(x-4)(x+2)=0

X-4=0 or x+2=0

X=4 or x=-2

4 0
2 years ago
Read 2 more answers
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