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3 years ago

11

E 8 books on a shelf, of which 2 are paperbacks and 6 are hardbacks. how many possible selections of 4 books from this self incl

ude at least one paperback

1 answer:

Dmitry_Shevchenko [17]3 years ago

5 0

At least 2 possible selection

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a map of South Carolina is being made to a scale of 1/2 inches equals 50 miles. Greenville is 230 miles from Myrtle beach. how f

Olin [163]

All you have to do here is multiply 230 by .5 and you get 115.

They are 115 inches apart on the map.

Hope this helped! :)

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3 years ago

Read 2 more answers

To use an automated teller machine at a certain bank, you must enter a 3-digit code, using the digits 1 dash 9. How many 3-d

3241004551 [841]

Answer:

729 , 3- digit codes are possible

Step-by-step explanation:

To use an automated teller machine at a certain bank, you must enter a 3-digit code, using the digits 1 dash 9.

We need a 3 digit code using digits 1 to 9

so total of 9 digits are used

also repetition of digits are permitted

In a 3 digit code, first digit can be any number from 0 to 9

so 9 possible numbers for first digit.

since repetition is allowed so second and third digit also have any number between 0 to 9

3 digit code

------ , ------- , --------

9 possibilities for each place

---9--- , ----9--- , ----9----

9 *9 *9 = 729

so 729 , 3- digit codes are possible

6 0

3 years ago

Honors algebra!! Plz help #22

ollegr [7]

Answer:

8

Step-by-step explanation:

12 times x (the first square) is equal to 16 times x-2 (the second square)

$12x = 16(x-2)$

Distributed

$12x = 16x-32$

Simplified (divided by 16)

$0.75x = x-2$

Subtract x from both side of the equation

$-0.25x = -2$

Both negatives cancel each other out

$0.25x = 2$

0.25 times what equals 2,...

$x = 8$

Hope it help,... and I'll see you in life,... well not really, but you get the idea,... Chow,...!

7 0

3 years ago

Security can be an issue with the use of Atms<br><br> A.True<br><br> B.False

shutvik [7]

A. True because you have to worry about someone stealing your money or someone looking over your shoulder to get your secret 4 digit number

7 0

3 years ago

nataly862011 [7]

Answer:

ok this was a good one so here

Step-by-step explanation:

time (seconds)

distance (meters)

speed (meters per second)

4 120 30

25 750 30

9 270 30

7 0

2 years ago