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HACTEHA [7]
3 years ago
9

Jack wanted to make note cards by cutting pieces of paper in half. Before starting he got ten more pieces to use. When he was do

ne he had 20 half-pieces of paper. With how many pieces did he start?
Mathematics
2 answers:
Zepler [3.9K]3 years ago
6 0

Answer:

10

Step-by-step explanation:

if you take 10 note cards and cut in half you will have 20 pieces

nekit [7.7K]3 years ago
5 0

Answer:

He Started With 7 Pieces

Step-by-step explanation:

as x + 3

2(+3) 20.

2(+3)=20

+3=10

=7

7 .

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At the high school band's annual spaghetti dinner, the members served 210 dinners and collected $935. The band leader did not de
Jlenok [28]

Answer:

935 = 6a + 3.5c (this is the amount that has been raised)

210 = a + c (this is this amount of the dinners being sold)

Step-by-step explanation:

so a = 210 - c

935 = (6 * (210 - c)) + 3.5c  

6 * 210 is 1260, so:  

935 = 1260 - 6c + 3.5c  

2.5c = 1260 - 935  

2.5c = 325  

so c = 130  

a = 210 - 130 = 80  

We know that 80 adult dinners were sold.

We also know 130 child dinners were sold as well.

6 0
3 years ago
The data on the right represent the number of traffic fatalities by seat location and gender. Determine ​P(​) and ​P(​|​). Are t
liubo4ka [24]

Answer:

The probability of selecting a male is 0.3151.

The events "male" and "driver" are not independent.

The correct option is B.

Step-by-step explanation:

The missing data is as follows:

                    Female          Male          Total

Driver            32759          11715          44474

Passenger      6534           6361          12895

Total              39293         18076          57369

The complete question is:

Determine ​P(​male) and ​P(male​|driver​). Are the events ​"male​" and ​"​driver" ​independent?

Solution:

Compute the probability of selecting a male as follow:

P(M)=\frac{n(M)}{N}=\frac{18076          }{57369}=0.3151

Thus, the probability of selecting a male is 0.3151.

Compute the probability of selecting a male given that he is a driver as follows:

P(M|D)=\frac{P(M\cap D)}{P(D)}=\frac{n(M\cap D)}{n(D)}=\frac{11715 }{44474}=0.2634

Two events, say A and B, are independent if:

P (A|B) = P(A)

Here, P (M|D) ≠ P (M)

Thus, the events "male" and "driver" are not independent.

7 0
4 years ago
Lukas is able to package and ship 416 cards in an 8-hour workday. How many cards can Lukas package a ship 32 hours?
jeka94

Answer:

1664 cards

Step-by-step explanation:

416 divided by 8 is 52 and 52 times 32 is 1664.

6 0
3 years ago
The difference between a number x and 14 is 17.<br><br><br> someone help
nevsk [136]
The answer would be 31 because if you put it in an equation it would x - 14=17
+14
So it would become 14 zero pairs and then you would add 14 to 17 which equals 31.
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