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Karolina [17]
3 years ago
11

Two balls are drawn in succession out of a box containing

Mathematics
1 answer:
victus00 [196]3 years ago
4 0
There are a total of 8 balls 

The probability of drawing a white ball is 4/8 on the first draw.
If you replace the ball then the probability will still be 4/8 for a white ball, since these events are independent of each other you multiply 4/8 x 4/8 = 16/64 or 1/4 then the probability of drawing at least 1 red ball with replacement is 1 - 1/4 = 3/4

Now without replacement:
the probability of drawing a white ball is 4/8 since you don't replace the ball then the probability of drawing a white ball the second time is 3/7 again multiply these two probabilities: 4/8 x 3/7 = 12/56 the the probability of drawing at least 1 red ball is 1- 12/56 = 44/56 or 11/14
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zepelin [54]
The answer is true.
7 0
3 years ago
Read 2 more answers
Malia is planting tomato and pepper plants in her garden each tomato plant t requires 6 square feet and each pepper plant p requ
MAVERICK [17]

Answer:

6 t + 4  p   ≤  150   is the required inequality.

Step-by-step explanation:

Here, the area required for 1 tomato plant = 6 sq ft

So, the area required to plant t tomato plants  

= t x ( Area required by 1  tomato plant)   = t x ( 6 sq ft)  = 6 t

the area required for 1 pepper plant = 4 sq ft

So, the area required to plant p  pepper plants  

= p x ( Area required by 1  pepper plant)   = p x ( 4 sq ft)  = 4 p

Now, total area of the garden = 150 Sq ft.

Also, area of p pepper pants + t tomato plants =   (6 t +  4 p) sq ft

So, now according to the question:

Total area of both plants ≤ Total area of the garden

⇒ (6 t +  4 p) sq ft   ≤  150 sq ft

or, 6 t + 4  p   ≤  150   is the required inequality.

5 0
3 years ago
Solve 3(2x-5)-4x+8=-1
777dan777 [17]

Answer:

6

Step-by-step explanation:

Step 1:

3 ( 2x - 5 ) - 4x + 8 = - 1

Step 2:

5x - 15 - 4x + 8 = - 1

Step 3:

x - 15 + 8 = - 1

Step 4:

x - 7 = - 1

Answer:

x = 6

Hope This Helps :)

7 0
3 years ago
the perimeter of a rectangle is 4 inches. the ratio of the width to the length is 3:5, as shown. find the width and the length o
notka56 [123]
4.8 is the answer hahehehehehehe sorry jus needs to be this many characters long
3 0
3 years ago
Each of the ten letters in ``MATHCOUNTS'' is written on its own square tile and placed in a bag. What is the probability that a
PIT_PIT [208]
step  1

First, see how many letters in MATHCOUNTS are also in TEACH.

M no

A  yes

T  yes

H yes

C yes

O  no

U no

N no

T  yes

S  no

 That is 5 out of the 10 letters.

so

<span>the probability=</span>5/10-------> 1/2 
<span>
the answer is
1/2
</span>

4 0
3 years ago
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