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marshall27 [118]
3 years ago
14

ben is 20 years older then daniel. ben and daniel first met two years ago. Three years ago ben was three times as old as daniel.

how old is ben now ?
Mathematics
2 answers:
Yanka [14]3 years ago
8 0
He is about 13 years old now.
allsm [11]3 years ago
7 0

Answer: Daniel is 13 years old; Ben is 33 years old

Step-by-step explanation:

Math

You might be interested in
Can someone please help me???
bazaltina [42]
A. (4)5 x (4)4 = 36 OR 4(5 x 4) = 36
b. No you would not. 5(5 x 4) = 45 which is out of your budget.
8 0
3 years ago
You have two biased coins. Coin A comes up heads with probability 1/4. Coin B comes up heads with probability 3/4. However, you
slega [8]

Answer:

3/4

Step-by-step explanation:

Probability is the likelihood of an event.

No.of favourable outcomes/ Total no. of outcomes

Probability of coin selection : [Both coins have equal likelihood of being chosen]

  • Prob( Coin A Selection) = 1/2
  • Prob (Coin B selection) = 1/2

Probability of head & tail by both coins :

  • Prob (Head / Coin A) = 1/4
  • Prob (Tail / Coin A) = 1 - [ P (Head/Coin A) ] = 1 - 1/4 = 3/4
  • Prob (Head / Coin B) = 3/4
  • Prob (Tail / Coin B) = 1 - [ P (Head/Coin B) ] = 1 - 3/4 = 1/4

Probability of getting head by Coin A : Prob (Coin A) & Prob (Head/CoinA)  = 1/2 x 1/4   = 1/8

Probability of getting tail by Coin A : Prob (Coin A) & Prob (Tail/CoinA) = 1/2 x 3/4 = 3/8

Probability of getting head by Coin B : Prob (Coin B) & Prob (Head/CoinB)  = 1/2 x 3/4   = 3/8

Probability of getting tail by Coin B : Prob (Coin B) & Prob (Head/CoinB)  = 1/2 x 1/4   = 1/8

Probability 'The guess [head from coin B, tail from coin A] :

Prob (Coin A) & Prob (Tail/CoinA) or Prob (Coin B) & Prob (Head/CoinB)  

= 3/8 + 3/8 = 3/4

3 0
3 years ago
Base five to decimal base
juin [17]

Answer:

Below.

Step-by-step explanation:

Here's an example.

What is 123 in base 5 converted to decimal.

123 base 5 =  3 * 5^0 + 2*5^1 + 1 * 5^2

= 3 + 10 + 25

= 38 in decimal.

6 0
2 years ago
3y-3.5/3y+6=17/25.5. find the value of y. give the scale factor of the polygon
Mekhanik [1.2K]

Hi the answer to your question is

 

((3y - 3.5) / (3y + 6)) * 25.5 = (17 / 25.5) * 25.5

((3y - 3.5) / (3y + 6)) * 25.5 = 17 (76.5y - 89.25) / (3y + 6) = 17

((76.5y - 89.25) / (3y + 6)) * (3y + 6) = 17 * (3y + 6) 76.5y - 89.25 = 51y + 102 76.5y - 51y = 102 + 89.25

25.5y = 191.25

y = 191.25 / 25.5

<span>y = 7.5</span>

3 0
3 years ago
Please help! this ones pretty simple im just not sure how to do it
Masteriza [31]

Step-by-step explanation: do what

8 0
3 years ago
Read 2 more answers
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