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3 years ago

14

HI! please help out ASAP this is due today! Explain it the best you can and send a picture explaining it so I won’t get confused

. Thank u!

1 answer:

serious [3.7K]3 years ago

5 0

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20c+4<br> A. 2(10c+2)<br> B. 2(2c+10)<br> C. 5(5c +4)

Sophie [7]

Answer:

a is the answer and plz make me brainliest

Step-by-step explanation:

5 0

3 years ago

Read 2 more answers

VARVARA [1.3K]

The cost of the phone contract will be mathematically given as

C = 45 + 13m

This is further explained below.

<h3>What is the formula?</h3>

Generally, According to the information provided, the monthly cost of the fixed line rental is £45, and the price of calls made is £13, thus the monthly cost will be represented by the following:

C = 45 + (13 × m)

Therefore

C = 45 + 13m

As a result, the price of the phone contract will be equal to C = 45 plus 13m, where m is the number of months in the contract.

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1 year ago

What is the standard form of the equation <br> 2(3x + 2y) - 13 = 0?

Lerok [7]

Answer:

6x+4y-13=0

Step-by-step explanation:

4 0

3 years ago

A horse race has 1313 entries and one person owns 44 of those horses. Assuming that there are no ties, what is the probability

777dan777 [17]

Answer: 0.0014

Step-by-step explanation:

Given : Number of entries in horse race = 13

Number of horses owned = 4

We assume that there are no ties .

Then , the probability that those four horses finish first, second ,third ,and fourth is given by :-

$\dfrac{4!}{^{13}P_4}=\dfrac{4!}{\dfrac{13!}{(13-4)!}}\\\\=\dfrac{4!\times9!}{13!}=.0013986013986\approx0.0014$

Hence, the required probability = 0.0014

6 0

4 years ago

A credit card contains 16 digits between 0 and 9. However, only 100 million numbers are valid. If a number is entered randomly,

marusya05 [52]

Answer:

$P(valid) = 1 * 10^{-8}$

Step-by-step explanation:

Let us first find the number of possible credit card numbers that can be formed with the numbers 0 - 9.

We want to form a 16 digit number out of 10 digits, so, we have:

$N = 10^{16}$

There are $10^{16}$ numbers that can be formed.

There are only 100 million valid numbers ( $100 * 10^6 = 10^8$ ). Let the number of valid numbers be n.

Therefore, the probability of picking a number that is valid is:

P(valid) = n / N

$P(valid) = 10^{8} / 10^{16}\\\\P(valid) = 1 * 10^{-8}$

8 0

3 years ago