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astraxan [27]
3 years ago
7

PLS HELP bxjxbxbxjxjjx

Mathematics
2 answers:
Leona [35]3 years ago
6 0

Answer:

D

Step-by-step explanation:

Luda [366]3 years ago
6 0

Answer:

The correct answer choice is D

Step-by-step explanation:

The probabilty is how much there is of the thing you are measuring divided by the total amount. Therefore, these are all the probablities:

White balls: 4/16 or 0.25 or 1/4 or 25%

Red balls: 8/16 or 0.50 or 1/2 or 50%

Black balls: 4/16 or 0.25 or 1/4 or 25%

Based on these probablities, we can now find the correct answer.

D is the correct answer because 8 balls amounts to half the total which means you have a 50 percent chance of picking it and 50 percent chance of not picking it.

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Gia sent two radio signals from Earth to Mars. Signal A traveled to Mars in 56 minutes. Signal B took ¼ as long. How many more m
Alex777 [14]

Answer:

i know that it B got there in 14 min and 56 divide bye 4 = 14 and now we subtract 56-14 = A took 42 more minutes then B

Step-by-step explanation:

42 min

8 0
4 years ago
Solve the following formula for the indicated variable.<br> – 5x – 3y = 13: solve for y.
SashulF [63]

9514 1404 393

Answer:

  y = -5/3x -13/3

Step-by-step explanation:

In any "solve for ..." problem, it is useful to start by identifying where the target is and what has been done to it. Here, y is in one term on the left side of the equation and it has had these things done to it:

  • multiply by -3
  • add -5x

We want to undo these in reverse order. We undo addition by adding the opposite. We undo multiplication by multiplying by the reciprocal (equivalently, dividing). <em>Whatever we do to one side of the equation, we must also do to the other side</em>.

So, first we add the opposite of -5x to both sides of the equation.

  -5x +5x -3y = 13 +5x

  -3y = 13 +5x . . . . . . . . . collect terms

Next, we undo the multiplication by -3. We can do that by multiplying both sides by 1/(-3) = -1/3.

  (-1/3)(-3y) = (-1/3)(13 +5x)

  y = -5/3x -13/3 . . . . . also we rearranged the terms to standard form

3 0
3 years ago
Tickets to a concert cost $2 for children and $5 for adults. If 630 people attended the concert and the ticket sales totaled $2,
sergeinik [125]
A) C + A = 630
B) 2C + 5A = 2,910  Multiplying A by -2
A) -2C -2A = -1,260 Then adding it to B
B) 2C + 5A = 2,910 
3A = 1,650
A = 550

A) C + 550 = 630
Children's tickets = 80



8 0
3 years ago
Read 2 more answers
Find the 4 numbers which have a mode of 12, a median of 14 and range of 10
DiKsa [7]

Answer:12, 12, 16, 22

Step-by-step explanation:

1. The number that occurs most is the mode

2. The range is the difference between the highest number and the lowest number.

3. The median in this case is the mean of the two middle numbers

7 0
3 years ago
Write 31.4 % as a decimal
saw5 [17]
31.4% should be divided by 100 to get decimal
31.4/100
0.314
5 0
4 years ago
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