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valentina_108 [34]
3 years ago
11

In a restaurant, the probability that a customer orders steak is 4/10. The probability of the same customer ordering dessert aft

er their meal is ¼. What is the probability that a random restaurant customer will order dessert given that they ordered steak?
A. 1/10

B. 2/8

C. 4/10

D. 5/8
Mathematics
1 answer:
joja [24]3 years ago
7 0
The answer is D. 5/8.
You have to divide the second event by the first event, so you have to divide 1/4 by 4/10.
You can just put that into your calculator and get 5/8, or you can multiply 1/4 by the reciprocal of 4/10, which is 10/4.
1/4 times 10/4 equals 5/8, therefore, the answer is 5/8.
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You ride your bike x miles per hour up a mountain for 45 minutes. On the way down the mountain, you ride your bike 3 miles per h
denpristay [2]

Answer:

18/5 miles

Step-by-step explanation:

let d be the mountain dist path

upward biking

x miles - 1 hr

d 45 mins

3x/4 = d

riding down

x+3 - 60 min

d. - 20

(1/3)(x+3) = d

(x+3)/3 = 3x/4

4x+12 = 9x

x = 12/5

d =( 12*3)/(4*5)= 9/5

upward+downward = 2*(9/5) = 18/5

7 0
3 years ago
Does the point (-4, 2) lie inside or outside or on the circle x^2 + y^2 = 25?​
d1i1m1o1n [39]

Given equation of the Circle is ,

\sf\implies x^2 + y^2 = 25

And we need to tell that whether the point (-4,2) lies inside or outside the circle. On converting the equation into Standard form and determinimg the centre of the circle as ,

\sf\implies (x-0)^2 +( y-0)^2 = 5 ^2

Here we can say that ,

• Radius = 5 units

• Centre = (0,0)

Finding distance between the two points :-

\sf\implies Distance = \sqrt{ (0+4)^2+(2-0)^2} \\\\\sf\implies Distance = \sqrt{ 16 + 4 } \\\\\sf\implies Distance =\sqrt{20}\\\\\sf\implies\red{ Distance = 4.47 }

Here we can see that the distance of point from centre is less than the radius.

Hence the point lies within the circle .

4 0
2 years ago
Read 2 more answers
Helpppppp plssssssssssssssssss
Oksana_A [137]

Answer:

can you take a better picture?

Step-by-step explanation:

3 0
3 years ago
F(1) = -16<br> f(n) = f(n-1) · (-1/2)<br> f(3) =
DanielleElmas [232]

Answer:

  -4

Step-by-step explanation:

Use the given value of f(1) to find f(2):

  f(2) = f(1) · (-1/2) = (-16)(-1/2) = 8

Now, we can find f(3) using f(2):

  f(3) = f(2) · (-1/2) = (8)(-1/2)

  f(3) = -4

3 0
3 years ago
27 divided by (3+6) time 5 - 12
adelina 88 [10]

Hello,

The answer to you question is 3.

27/(3+6) x 5 - 12 = 3

Hope it helps, Cheers.




7 0
3 years ago
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