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Fed [463]
3 years ago
12

What's the probability of obtaining a 3 digit number at random which is DIVISIBLE by 7 ​

Mathematics
1 answer:
pochemuha3 years ago
6 0

Answer:

  32/225 ≈ 0.1422

Step-by-step explanation:

If you consider "3-digit" numbers to be between 100 and 999, inclusive, there are 128 such numbers divisible by 7. The probability of choosing one at random is ...

  128/900 = 32/225 = 0.1422...(repeating)

__

If you consider all non-negative integers less than 1000 to be "3-digit numbers," then the probability is ...

  142/1000 = 0.142 (exactly)

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20 POINTS!!!! If eight is added to twice a number and the sum is multiplied by five result is the same as if the number is multi
Sauron [17]
<h3><u>The value of x is equal to -2.</u></h3>

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

<em><u>Distributive property.</u></em>

10x + 40 = -8x + 4

<em><u>Add 8x to both sides.</u></em>

18x + 40 = 4

<em><u>Subtract 40 from both sides.</u></em>

18x = -36

<em><u>Divide both sides by 18</u></em>

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6 0
3 years ago
Donald has a bunch of nickels and dimes in his piggy bank. There are 100 coins in the bank that make a total of $6.60 in change.
brilliants [131]

Answer:

78 nickels and 22 dimes

Step-by-step explanation:

Nickels = n, Dimes = d

<u>Number of coins = 100</u>

  • n + d = 100

<u>Total sum in the piggy bank = $6.60 </u>

  • 5n + 10d = 660

<u>Consider the first equation in the second:</u>

  • 5(100 -d) + 10d = 660
  • 500 - 5d + 10d = 660
  • 5d = 110
  • d = 110/5
  • d = 22
  • n = 100 - 22
  • n = 78

<u>Answer:</u> nickels 78 and dimes 22

8 0
3 years ago
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|x |-8= -5 <br>what's the answer​
ladessa [460]

Answer:

|x |-7 = -5     ( x = -3 )

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
What is the classification for this polynomial 2u^2vw^2
Alexxx [7]
It’s a monomial for sure
6 0
4 years ago
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A triangle has vertices at R(1, 1), S(-2,-4), and T-3, -3). The triangle is transformed according to the rule Ro, 270 What the c
notsponge [240]

Answer:

Based on the situation above and the choices provided the he coordinates of S should be (2,4) while the coordinates of R is (-1, 1), and for the T it should be (–3, 3). I hope the answer will help.

3 0
3 years ago
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