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3 years ago

7

A bag contains 6 red and 10 black marbles. If you pick a marble, record its color and return it to the bag 200 times, how many t

imes can you expect to pick a black marble?

2 answers:

katrin [286]3 years ago

4 0

125.
16 (10 and 6) divided by 100 is 6.25. Times two is 12.5. (For 200) times 10 for 10 marbles.

Sladkaya [172]3 years ago

3 0

Answer:

10

Step-by-step explanation:

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Norma-Jean [14]

Answer:

F=15

Step-by-step explanation:

3 0

2 years ago

Sharika can finish the work in 6 days and Palkey can do the same work in 8 days. They both worked together for for 2 days then P

Rufina [12.5K]

Answer:

Sharika needs 2.5 days to finish the remaining work

Step-by-step explanation:

Sharika can do a work in 6 days palkey can do it in 8 days

Then the amount of work sharika can do in 1 day = 1/6

And the amount of work palkey can do in 1 day = 1/8

The amount of work both of them can do together in 1 day = 1/6 + 1/8

= 7/24

The amount of work both of them can do together in 2 day = (2× 7/24)

= 7/12

Since Palkey left the work,the amount of

work remaining for Sharika to do alone = (1 - 7/12 )

= 5/12

The number of days Sharika take to finish the remainig work. = (5/12 ÷ 1/6 )

= 5/2 days

Therefore, Sharika needs 2.5 days to finish the remaining work.

5 0

3 years ago

Leezas aquarium holds 55 gallons of water. She is filling the tank and has already put in 22 gallons. Write and solve an inequal

svp [43]

Leeza can put 33 or less gallons of water in aquarium.

Step-by-step explanation:

Given,

Capacity of aquarium = 55 gallons of water

Water already in aquarium = 22 gallons

Let,

x be the number of gallons that can be added in aquarium.

As aquarium can hold 55 gallons of water, therefore, we cannot add more than 55 gallons of water.

$x+22\leq 55$

Subtracting 22 from both sides

$x+22-22\leq 55-22\\x\leq 33$

Leeza can put 33 or less gallons of water in aquarium.

Keywords: inequality, subtraction

Learn more about inequalities at:

#LearnwithBrainly

6 0

3 years ago

Pls help I’m on my last attempt to answer this question. This is geometry

Harman [31]

Answer:

the answer to this question would be RT=16 Please mark brainliest!

5 0

2 years ago

Factor completely. x^3 + 2x^2 + x + 2

slega [8]

$x^3 + 2x^2 + x + 2=\\
x^2(x+2)+1(x+2)=\\
(x^2+1)(x+2)$

8 0

3 years ago