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ch4aika [34]
3 years ago
8

Which of the following values cannot be​ probabilities? 3/5​, 5/3​, 0​, 1​, 1.15​, StartRoot 2 , -0.57​, 0.09

Mathematics
1 answer:
Ugo [173]3 years ago
7 0

Answer:

\sqrt{2},-0.57

Step-by-step explanation:

Probability of any incidence can only be a rational number.

Porbability can never be less than zero. It is basically defined as the ratio of

chance of occurence of an event to the total possible ways of occurence of the event. So an event cannot occur and the probability can be zero but never negative.

\sqrt{2} being a irrational number cannot be a possibkle vlue for probability.

Hence values which cannot be possible are \sqrt{2},-0.57.

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Reduce 105 in the ratio 3:5​
Komok [63]

9514 1404 393

Answer:

  39.375 : 65.625

Step-by-step explanation:

The meaning of "reduce" in this context is unclear. We assume you want to divide the quantity 105 into parts that have a ratio of 3 : 5. Then the smaller part will be 3/(3+5) = 3/8 of the total; the larger part will be 5/8 of the total.

  3/8 × 105 = 39 3/8

  5/8 × 105 = 65 5/8

The divided quantities are ...

  39.375 : 65.625

3 0
3 years ago
How many models of 100 do you need to model 2,700
Mariana [72]

Answer:

27

Step-by-step explanation:

well 20 models of 100's=2,000

so now we have 700 left over

so to get to 700 how many 100's does it take=7

so put those 2 numbers together 27

Hope it helps have a great day :}

5 0
2 years ago
Ali, Carrie and Bryan received a sum of money. Bryan's money was 3/5 as much as Ali's money. The ratio of Ali's money to Carrie'
monitta

Answer:

The sum of money received by Ali, Carrie and Bryan is $ 740.

Step-by-step explanation:

At first we translate mathematically each sentence:

(i) <em>Ali, Carrie and Bryan received a sum of money. </em>

a - Ali's money.

b - Bryan's money.

c - Carrie's money.

(ii) <em>Bryan's money was </em>\frac{3}{5}<em> of  Ali's money</em>.

b = \frac{3}{5}\cdot a (1)

(iii) <em>The ratio of Ali's money to Carrie's money was 4 : 1</em>.

\frac{a}{c} = 4 (2)

(iv) <em>Ali had $ 160 more than Bryan</em>.

a = b + 160 (3)

After some algebraic handling, we have the following system of linear equations:

3\cdot a - 5 \cdot b = 0 (1b)

a - 4\cdot c = 0 (2b)

a - b = 160 (3b)

The solution of the system is: a = 400, b = 240, c = 100

The sum of money is:

s = a + b + c

s = 740

The sum of money received by Ali, Carrie and Bryan is $ 740.

4 0
3 years ago
What are the Horizontal and vertical shift of <br> y = x+2-3
Nana76 [90]
If the equation is y=(x+2)-3 then the shifts are
3 down and 2 to the left
7 0
2 years ago
Solve for :<br>(x+3)/2=6​
Marianna [84]

Answer:

x=9

Step-by-step explanation:

(x+3)/2=6​

Multiply each side by 2

2*(x+3)/2=6*2

x+3 = 12

Subtract 3 from each side

x+3-3 = 12-3

x = 9​

5 0
3 years ago
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