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Paha777 [63]
3 years ago
8

The probability of a thunderstorm is 80%. What are the odds that there will be a thunderstorm?

Mathematics
2 answers:
Katena32 [7]3 years ago
5 0

8 out of a tenth chance converting it from the 80%
iren [92.7K]3 years ago
5 0
An 8 out of 10 chance :) hope you get an A+ :)
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The sum of two positive integers, x and y, is not more than 40. The difference of the two integers is at least 20. Chancee choos
kvasek [131]

Answer:

No, Chancee mixed up the variables, the correct solution is that x must be between 20 and 40 and y must be between 0 and 10.

Step-by-step explanation:

Here, x and y are positive integers,

Such that, their sum is not more than 40,  

i.e. x + y ≤ 40 where x, y ≥ 0,

⇒ y ≤ 40 - x                 ...............(1),

Their difference is at least 20,

i.e. x - y ≥ 20

-y ≥ 20 - x

⇒ y ≤ x - 20   ............(2),

Graphing y ≤ 40 - x :

Related equation of inequality (1),

y = 40 - x

if x = 0, y = 40,

if y = 0, 0 = 40 - x ⇒ x = 40,

'≤' represents a solid line,

Join the points (0, 40) and (40, 0) by solid line.

Graphing y ≤ x - 20:

Related equation of inequality (1),

y = x - 20,

if x = 0, y = -20,

if y = 0, 0 = x - 20 ⇒ x = 20,

'≤' represents a solid line,

Join the points (0, -20) and (20, 0) by solid line.

By graphing we obtained a feasible region that is the solution of the system of inequalities (1) and (2) ( shown below ),

In which,

20 ≤ x ≤ 40 and 0 ≤ y ≤ 30

Hence, Chancee did not find the correct solution.

5 0
3 years ago
the sum of two numbers is 5 the larger number is 14 more than twice the same number what is the larger number
tatyana61 [14]

Answer:

L=8

Step-by-step explanation:

S=smaller number

L=larger number

S+L=5 : S=5-L

L=14+2S

substitute for S:

L=14+2(5-L)

solve for L:

L=14+10-2L

3L=24

L=8

8 0
3 years ago
Read 2 more answers
A ball is kicked off of the roof of a building. The path the ball travels is modeled by the equation f(x)= -x^2 + 6x+ 16, where
damaskus [11]

Answer:

This question is a rather easy one which can be answered by simply solving the embedded quadratic equation.

f(x) = -x^{2} + 6x + 16

To make our solving easier, what we do is multiply the whole equation by -1. By so doing, we make "x" positive. Then, we have

f(x) = x^{2} - 6x - 16

Solving this equation quadratically, we have

x^{2} + 2x - 8x - 16 = and when we factorize this expression, we have

x(x + 2) -8(x + 2) =

(x - 8) (x + 2) = 0

x - 8 = 0, x + 2 = 0

x = 8, or  x = -2

Since distance can not be in negative(minus), we then have our x to be 8 meters.

Another example on factorization can be seen here  brainly.com/question/13813750

3 0
3 years ago
Which system is represented by the graph shown here
icang [17]
A; first equation is the red one and second is the blue one
4 0
2 years ago
Read 2 more answers
How do you show 80 degrees in an angle
Karolina [17]
Well a right angle is 90° so all u have to do is take 10° away from that
5 0
2 years ago
Read 2 more answers
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