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3 years ago

There is a 20% chance of thunderstorms tomorrow. Describe the likelihood of the event.

Mathematics

2 answers:

Pachacha [2.7K]3 years ago

8 0

Answer:

Step-by-step explanation:

20% = 1/5 or 0.2

There is a 1/5 chance of a thunderstorm.

There really is no clear answer. I would try 0.2

labwork [276]3 years ago

7 0

Answer: The vent is unlikely to happen.

Step-by-step explanation:

Given : There is a 20% chance of thunderstorms tomorrow.

i.e. the probability of thunderstorms tomorrow =0.2

We know that when the probability of any event lies between 0 and 0.5 then the event is said to be unlikely to happen.

Since , the probability of thunderstorms tomorrow is between 0 and 0.5.

Therefore, it is unlikely to have thunderstorms tomorrow.

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2x+8y = 6 15x + 20y = 15

Likurg_2 [28]

Answer:

The solution is (0, 3/4)

Step-by-step explanation:

Please copy and share the instructions. Here they are: Solve the following system of linear equations.

Both of the equations can be reduced (simplified):

2x+8y = 6 => x + 4y = 3

15x + 20y = 15 => 3x + 4y = 3

Let's use the elimination by addition and subtraction method. Multiply the first equation by -1, obtaining

-x - 4y = -3

Add the second 3x + 4y = 3

equation to the

first.

We get: 2x = 0.

Thus, x = 0. Substituting 0 for x in the 1st original equation yields:

2(0) + 8y = 6. Then y = 6/8, or y = 3/4.

The solution is (0, 3/4).

4 0

3 years ago

John & friends brought 4 bags of popcorn and 3 sodas at the movie for a total of 13.50. At the next movie John & friend

scoray [572]

Answer:

The cost of 5 bags of popcorn and 2 sodas is 14.25 units.

Step-by-step explanation:

We are given the following in the question:

Let x units be the cost of a popcorn bag and y units be cost of soda.

The cost of 4 bags of popcorn and 3 sodas is 13.50.

Thus, we can write the equation:

$4x + 3y = 13.50$

The cost of 2 bags of popcorn and 5 sodas is 12.00

Thus, we can write the equation:

$2x+5y=12$

Solving the two equations, we get,

$4x + 3y-(4x+10y) = 13.5 - 24\\\Rightarrow -7y =10.5\\\Rightarrow y = 1.5\\\Rightarrow 2x + 5(1.5) = 12\\\Rightarrow x = 2.25$

Thus, the cost of popcorn bag is 2.25 units and the cost of a soda is 1.5 units.

Cost of 5 bags and 2 sodas

= $=5x+2y\\=5(2.25) + 2(1.5)\\=14.25$

Thus, cost of 5 bags of popcorn and 2 sodas is 14.25 units.

8 0

3 years ago

Find the value of A A: 18 B: 21 C: 20 D: 17

AnnZ [28]

These are vertical angles so they are equal so

6a + 11 = 2a + 83

now solve for a

6 0

2 years ago

Read 2 more answers

Give an example of when you had to prove something, and how you did it!

Marizza181 [45]

Answer:

Just practice ,know different ways of solving it ,gain experince ,be smart and skilled.

Step-by-step explanation:

if you want to prove anuthing then go with the concept accoeding to the nature of the problem and there are almost many ways to prove anything so don't waste your time on way get on to the other ways.

It may not get proved at first time so keep on doing questions and when you have gained experience you know every nature of problems and then you are skilled properly.

8 0

3 years ago

Pleseeeeeeeeeeeeeeee helllllpppppppppppppppppp fastttttt. urgent

Afina-wow [57]

5a) rotational symmetry is 2 because it can be rotated only 2 times before it turns to the original form.

b) perimeter is the total surface of all the sides so, because we are given a scale of 1 unit = 1cm then our measurements would be: 4cm + 3cm + 2cm + 1cm + 4cm + 3cm + 2cm + 1cm = 20cm.

c) To workout the area we need to divide the irregular shape into separate regular shapes. the diagram will help you! Shape 1 is a rectangle so, area = L × W = 3 × 2 = 6cm. Shape 2 is a square so, area = side² = 2² = 4cm. Shape 3 is the same as shape 1 so the area is 6cm. Now to find the area of the whole shape we add these values so, 6+4+6= area of shape = 16cm.

d) The diagram will show the answer!

6 0

3 years ago