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jarptica [38.1K]
3 years ago
5

Do i need to reverse the inequality symbol when i add the same positive number to or subtract the same positive number from both

sides of an inequality?
Mathematics
1 answer:
stira [4]3 years ago
6 0
No, You only reverse the inequality symbol when you divide by a negative number.
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A bag contains 8 red balls and 6 blue
Andreyy89

Answer:

The probability that all 3 balls are red is 18.65%, while the probability that all 3 balls are blue is 7.87%.

Step-by-step explanation:

Since a bag contains 8 red balls and 6 blue balls, and Radhika takes three balls at random from the bag, without replacement, to calculate the probability that the three balls are the same color, the following mathematical operations must be performed:

8 + 6 = 14

14 = 100

8 = X

8 x 100/14 = X

800/14 = X

57.14 = X

100 - 57.14 = 42.86

0.5714 ^ 3 = X

0.1865 = X

0.4286 ^ 3 = X

0.0787 = X

Therefore, the probability that all 3 balls are red is 18.65%, while the probability that all 3 balls are blue is 7.87%.

5 0
3 years ago
Please help with these questions and show how u found them i will mark you brainliest
nata0808 [166]

Answer:

5(x+8)

5x+8x

5x+40

6q+2+3q+5

9q+7

8 0
3 years ago
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What is the answer ? <br> PLS
grin007 [14]

Answer:

I think a or C

Step-by-step explanation:

8 0
3 years ago
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How many different 3-digit PIN codes are there that only include the digits 7, 4, 3 and 2?
KengaRu [80]

Answer:

64

Step-by-step explanation:

We can use the product rule of counting to answer this:

There are 4 possibilities for the 1st digit
There are 4 possibilities for the 2nd digit
There are 4 possibilities for the 3rd digit
So we use the product rule of counting to give us:

4×4×4=64

6 0
3 years ago
Anumber is decreased by 55% to 54. What is the originally amount
harina [27]

Answer:

1.8181818181818181818181818181818

7 0
4 years ago
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