All categories

2 years ago

What is the probability that a number selected from the numbers 1 to 15 is a multiple of 4?

Mathematics

1 answer:

labwork [276]2 years ago

5 0

Answer:

1/5

Step-by-step explanation:

probability = favorable outcomes/total outcomes

4, 8, 12 are multiples of 4, so there are 3 favorable outcomes.

There are 15 total outcomes.

Make the fraction

3/15

reduce by 3

1/5

You might be interested in

a manufacturer has determined that if his company sells x items per day then their profit is given by P=-x^2+ 700 x-10000 euros.

Radda [10]

Answer:

Step-by-step explanation:

To find the minimum amount of items, x, that need to be sold for the manufacturer to make a profit, we can use the quadratic formula

$x = \frac{-b+\sqrt{b^{2}-4ac } }{2a}; x= \frac{-b-\sqrt{b^{2}-4ac } }{2a}$

$x= \frac{-700+\sqrt{700^{2}-4(a)(-10000) } }{2(1)}; x= \frac{-700-\sqrt{700^{2}-4(a)(-10000) } }{2(1)}$

$x= \frac{-700+\sqrt{530000} }{2}; x= \frac{-700-\sqrt{530000} }{2}$

$x=\frac{-700+100\sqrt{53} }{2}; x=\frac{-700-100\sqrt{53} }{2};$

$x=-350 + 50\sqrt53 = 14.005; x = -350 - 50\sqrt53 = -714.005$

In context of the problem, we can only rely on the positive value, as the negative value would lead to a loss of profit.

$(-714.005)^2+700(-714.005)-10000=-0.360$

Furthermore, we must round to the nearest whole number, as you cannot make part of an item.

Lastly, if you were to plug in 14 into the equation for Profit, you would still have a negative number (i.e. a negative profit), thus requiring the manufacturer to make no less than 15 items to make a profit:

$(14)^2+700(14)-10000=-4\\\\(15)^2+700(15)-10000=725$

3 0

2 years ago

Solving Equations by Adding or Subtracting Fractions<br> Show all working<br> n + 23 = 19

dlinn [17]

N+23=19
-23 -23 Takeaway 23 from both sides
Answer is N= - 4

7 0

2 years ago

Find the distance between each pair of point. Round to the nearest hundredth(-8, -2) and (6, -1)

Murljashka [212]

Answer:

the square root of 197

Step-by-step explanation:

delta x=14

delta y=1

therefore with the Pythagorean theorem, the hypotenuse/distance is the square root of 197

7 0

2 years ago

If ps=6cm and pt=9cm what is pr

vladimir1956 [14]

$16+ x^{2} = 36
$
$x^{2} =20$
$x= \sqrt{20}$
$4^{2} + x^{2} = 6^{2} 
$

Hope it helps!
#MissionExam001

4 0

3 years ago

. Using the rounding off technique, find the rough estimated difference of the given decimals.

nikitadnepr [17]

Answer:

19. 188

20. 18

21. 5

21. 4

Step-by-step explanation:

634.58 would round up to 635 and 436.79 would round up to 437.

20. 37.86 would round up to 38 and 19.92 would round up to 20.

21. 14.49 would round to 14 and 8.59 would round up to 9.

22. 7.45 would round down to 7 and 2.93 would round up to 3.

3 0

2 years ago

What is the probability that a number selected from the numbers 1 to 15 is a multiple of 4?​

What is the probability that a number selected from the numbers 1 to 15 is a multiple of 4?