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Rina8888 [55]
3 years ago
13

The value of Jim's telephone calling card decreases 15 cents for every minute he uses it. Yesterday he used the card to make a 6

-minute call. How much did the value of the card change
Mathematics
1 answer:
Alja [10]3 years ago
4 0

Answer:

90 cent

Step-by-step explanation:

15*6=90

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Help with this question please!
Anton [14]

∠1 and ∠2 are alternate exterior angles where transversal BE crosses parallel lines AC and DF, therefore they are equal. ∠2 and ∠3 are opposite angles of a parallelogram, therefore they are equal.

... ∠1 = ∠2

... 3x -5 = 2x +15 . . . . substitute the given values

... x = 20 . . . . . . . . . . . add 5-2x

The measures of angles 1, 2, and 3 are 2·20+15 = 55 . . . degrees.

5 0
3 years ago
2(n+5)=-2 step by step plz
Elodia [21]

Answer:

n=-6

Step-by-step explanation:

2(n+5)=-2

distribute

2(n+5)

2xn 2x5

2n+10

2n+10=-2

subtract 10 from both sides

10-10=0

-2-10=-12

2n=-12

divide each side by 2

2n/2=n

-12/2=-6

n=-6

6 0
3 years ago
"If the probability of an event is observed repeatedly during independent repetitions than the ratio of the observed to the tota
PIT_PIT [208]

Answer:

This is the Law of <u>large</u> Numbers.

Step-by-step explanation:

The Law of Large numbers states that as the sample size is increased the sample mean value gets closer to the population mean.

That is, as <em>n</em> → ∞ the value of \bar x → μ.

For instance, the theoretical probability of getting a Heads in a toss of a coin is, 0.50.

To check this perform an experiment whether the coin is tossed 20 times.

The probability of heads will be somewhere near 0.50.

Now toss the coins 50 times.

The probability of heads will be now closer to 0.50.

Now toss the coins 100 times.

The probability of heads will be approximately equal to 0.50.

Thus, as the number of tosses was increased the probability of getting a head is closer tot he theoretical probability.

Thus, the complete statement is:

This is the Law of <u>large</u> Numbers.

3 0
3 years ago
Read 2 more answers
Maria has already written  of her 1,000 word essay. If she continues writing at the same pace of 6 words per minute, which expre
neonofarm [45]
The first thing we must do in this case is to define variables:
 t = time to write the words
 v = write speed.
 w = number of words.
 The correct expression is:
 t = w / v
 By substituting we have:
 t = 1000/6
 t = 166.6666667
 Rounding:
 t = 167 minutes
 Answer:
 
The correct expression is:
 
t = w / v
 The time is:
 t = 167 minutes
8 0
3 years ago
Read 2 more answers
Divide.<br><br> 38/733<br> Enter your answer in the boxes.
fenix001 [56]

Answer: 0.051

Step-by-step explanation: Am very big brain, My IQ is above your comprehension.

8 0
3 years ago
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