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masya89 [10]
3 years ago
6

Each day, there is a 75% chance that elise will do her homework. what is the probability she does her homework on monday or tues

day?
Mathematics
2 answers:
serg [7]3 years ago
5 0
This problem is easier solved by finding the probability that she does NOT do her homework both Monday and Tuesday, which is obtained by the multiplication rule.

P(no HW on Monday) = 1-0.75 = 0.25
P(no HW on Tuesday) = 1-0.75 = 0.25
P(no HW on both Monday and Tuesday) = 0.25*0.25=0.0625 
    [by the multiplication rule]

This means that the rest of the time (1-0.0625=0.9375) Elsie does her homework either Monday, or Tuesday, or both days.
=>
P(HW either Monday, Tuesday, or both) = 0.9375

(note: in current English, Monday or Tuesday means "either Monday, Tuesday, or both days")

frutty [35]3 years ago
3 0

Answer:

1.5

Step-by-step explanation:

Thinking process:

The probability of two events, A or B is given by the formula:

P (A or B) = P (A) + P (B)

The probability of doing homework on a Monday = 75 % = 0.75

Similarly,the probability of doing homework on a Monday = 0.75

Therefore, the probability of doing homework on Monday or Tuesday is given by:

P (M or T)  = P (M) + P (T)\\                  = 0.75 + 0.75\\                  =1.5

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The sum of two numbers is 46. The larger number is two less than three times the smaller number. Find the numbers.‍♀️
Alex787 [66]

Answer:

Smaller number: 12

Larger number: 34

Step-by-step explanation:

Let x represent the smaller number.

Let 3x - 2 represent the larger number (The larger number is two less than three times the smaller number, or x)

x + 3x -2 = 46

   Add 3x + x:

4x - 2 = 46

   Add 2 to both sides:

4x = 46 + 2

   Add 46 + 2:

4x = 48

    Divide both sides by 4:

4x/4 = 48/4

x = 12 is the smaller number

Since 12 is the smaller number, and the sum of the two numbers is 46, than the larger number must be 34.

I hope this helped you. If it did, please consider, rating, pressing thanks and/or giving my answer 'Brainliest.' Have a great day! :)

6 0
3 years ago
Ahab needs to mix 3.5 cups of liquid iced tea concentrate with 3 cups of water to make iced tea. Ahab has 21 cups of iced tea co
liraira [26]

Answer:

  39 cups

Step-by-step explanation:

If we assume that the 3.5 cups of concentrate make 3.5+3 = 6.5 cups of tea, we can use the proportion ...

  6.5/3.5 = x/21

to find the x cups of tea Ahab can make with 21 cups of concentrate.

Multiplying by 21, we get ...

  x = 21(6.5/3.5) = 39

Ahab can make 39 cups of tea.

4 0
3 years ago
I know the answers to this problem. I will give brainiest to the first one who ANSWER IS CORRECT.
const2013 [10]

Answer:

24240300

Step-by-step explanation:

multiply the numbers thand divide by 2.

3 0
3 years ago
Keely says that he’s glad that his morning coffee is sold in a monopolistically competitive market rather than a purely competit
aleksklad [387]
This suggests that he buys products with higher prices than other similar products. But this type of market(monopolistic competition) is great though, because there are lesser suppliers than in the pure competition where products are almost within the same price ranges. In a monopolistic competition, suppliers sell their products with a justifiable high price. This is also an advantage for the buyers, they would be able to consume and be satisfied with products of high quality. 
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A chef uses 3 3/4 pounds of semolina flour and 1 5/8 pound whole wheat flour for each batch of pasta she makes.one week she uses
Maurinko [17]
It is to be noted that for this item, we more concern of the pounds of flour. The number of batches is calculated by dividing the total mass of flour used by the amount per batch. That is,
                                              n = 86 lbs / (1 + 5/8 lbs/batch)
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Thus, the chef makes approximately 53 batches of pasta. 
4 0
3 years ago
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