Plz help!!

Mathematics

1 answer:

AlexFokin [52]3 years ago

7 0

Answer: 50 Books

Step-by-step explanation:

B = number of books in Ruben's collection BEFORE he bought new ones.

So 6 books were bought which increased his collection by 12%.

12% as a decimal would be 0.12..then we add the variable which represents the number of books, 0.12B.

So then we know 0.12=6

*We need to isolate the variable* So we would divide 0.12 on both sides. 0.12/0.12 and 0.12/6 which is 50.

Hope this helps! :)

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Ariana's password consists of 1 letter followed by 2 digits. What is the probability of correctly guessing Arabella's password?

AleksandrR [38]

Answer:

1/2600 = 0.00038

Step-by-step explanation:

To find this probability, we first need to find how many ways we can fill each letter and each digit.

The letter has 26 different values, and each digit has 10 different values, so to find the total number of passwords, we just need to multiply the possibilities for each letter and digit:

Total cases = 26 * 10 * 10 = 2600

So the probability of correctly guessing is 1/2600 = 0.00038

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4 years ago

To convert centimeters to inches, we multiply the measurement in centimeters by 2.54. identify the type of relation between cent

Westkost [7]

Hey there! Hello!

This can be represented by the equation y=2.54x, where:

y=measurement in inches
x=measurement in cm

You can plug any value into this problem to reveal that this is a linear function. I provided a graph of this to further prove the point.

Hope this helped you out, feel free to ask any additional questions if you need further clarification! :-)