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solong [7]
3 years ago
15

A bag contains 6 red and 10 black marbles. If Mia picks a marble, records its color, and returns it to the bag 200 times, how ma

ny times can she expect to pick a black marble?
Mathematics
1 answer:
Daniel [21]3 years ago
7 0
She can expect to pick a black marble 125 times
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Using the digits 0 to 9 at most one Time each,fill in the boxes below to write equations whose solution is 1/2
andrezito [222]

Answer:

The equation is 4x + 5 = 2x + 6

Step-by-step explanation:

The solution is \frac{1}{2} means x = \frac{1}{2}

Let us put the coefficient of x in the left hand side = 4 and the coefficient of x in the right hand side = 2

∵ 4x - 2x = 2x

Now we need two numerical terms their difference is 1 like 5 and 6 or 6 and 7 or 7 and 8 or 8 and 9

Let us take 5 and 6

∵ 4x + 5 = 2x + 6

- Subtract 2x from both sides

∴ 2x + 5 = 6

- Subtract 5 from both sides

∴ 2x = 1

- Divide both sides by 2

∴ x = \frac{1}{2}

∴ The solution is  \frac{1}{2}

The equation is 4x + 5 = 2x + 6

8 0
3 years ago
A bus is travelling from Addis Ababa to Ambo. It travels 43 km in the first hour
zhuklara [117]
<h3>Answer:  43 km per hour</h3>

==================================================

Work Shown:

total distance = 43+40+46 = 129 km

total time = 1+1+1 = 3 hours

average speed = (total distance)/(total time)

average speed = (129 km)/(3 hrs)

average speed = (129/3) (km/hr)

average speed = 43 km per hour

8 0
3 years ago
Read 2 more answers
Subtract.<br><br> 3x−5x−4−x2+12x−17x2−16
Lena [83]

Step-by-step explanation:

3x - 5x - 4 - x^2 + 12x - 17x^2 - 16

= -2x - 20 - 18x^2 + 12x

= 10x - 20 - 18x^2

Hope it helpz~ uh..

6 0
2 years ago
Which situation is best represented with a negative number?
gogolik [260]

Answer: 1

Step-by-step explanation:

4 0
3 years ago
Will mark you as brainliest. If your good with polynomials.
kobusy [5.1K]
To solve/simplify this all you have to do is group like terms (the x^2's with each other, the x's with each other, and the normal numbers, -8)

14x^2-8+5x-6x^2+2x

group the x^2 (add 14x^2 to -6x^2)

8x^2-8+5x+2x

group the x's together (add 5x and 2x together)

8x^2+7x-8

Your answer will be d) 8x^2+7x-8



4 0
4 years ago
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