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Harrizon [31]
2 years ago
5

What is the value of 16- a when a = 9​

Mathematics
2 answers:
Allisa [31]2 years ago
5 0

7 if a = 9 the 16-9=7

grandymaker [24]2 years ago
5 0

Answer:

7

Step-by-step explanation:

given that

16- a

when a = 9

therefore

16 - 9

= 7

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Number 13 please. I know the answer is 20 I just don’t know how to get there
Rudiy27

4/20 is 0.20, which is equivalent to 20%.


Remember that 1.0=100%, 0.5=50%, 0.2=20%, 0.05=5%, and so on.

4 0
3 years ago
Read 2 more answers
There are 12 marbles in a box. 8 are purple, and 4 are green. What is the probability of picking a purple marble and then a gree
Bad White [126]

Answer: 8/33

Step-by-step explanation:

So the probability of picking a purple marble is 8/12, after that there are 11 marbles left in the box

Now the probability of picking a green marble without placing the first marble back is 4/11

So the probability of doing both is 8/12 x 4/11 = 8/33

8 0
2 years ago
A dime has the same value as 10 pennies. Marley brought 290 pennies to the bank. How many dimes did Marley get?
Free_Kalibri [48]
I found the awnser by doing 10x10x2 witch equals 200. Then i know that 10x9 equals 90 so, you would get 29 dimes.
6 0
3 years ago
Read 2 more answers
A coin is tossed 4 times. Let E1 be the event "the first toss shows heads" and E2 the event "the second toss shows heads" and so
Elden [556K]

Answer:

The events are independent.

The probability of showing heads on both toss is equal to 1/2

Step-by-step explanation:

The sample space for this experiment consists of 2⁴= 16 sample points, as each toss can result in two outcomes we assume that the events are equally likely.

Two events are independent in the sample space if the probability of one event occurs, is not affected by whether the other event has or has not occurred.

In general the k events are defined to be mutually independent if and only if the probability of the intersection of  any 2,3,--------, k  equals the product of their respective probabilities.

P (A∩B) = P(A). P(B)

P (A∩B)   = 1/2. 1/2= 1/4

                                                                  Head          Tail

 P(E1)= 1/2  ----------          Coin 1               H,H              T,H

                                                                1/4                  1/4

  P(E2)= 1/2  ---------------  Coin 2             H, H               H,T

                                                                      1/4           1/4

So the events are independent.

The probability of showing heads on both toss is equal to 1/2

The sample space for this experiment consists of 2⁴= 16 sample points, out of which eight will have heads on both toss.

Or in other words ( 1/4* 1/4) = 2/4 = 1/2

4 0
2 years ago
A box contains 3 red pencils, 4 blue pencils, 2 green pencils, and 1 regular pencil.
raketka [301]

Answer:

100

Step-by-step explanation:

add all the number together 3 + 4 + 2 +1=10

250/10=25

then times 25 with the 4 number at the top

25 times 4 =100

so there is 100 blue pencils

8 0
3 years ago
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