MATHEMATICS MIDDLE SCHOOL

Lara tossed a fair coin 3 times. What is the probability of getting heads in the first two trials?1 over 8

2 over 8

3 over 8

4 over 8

I tried 4/8 and I had gotten it wrong!

Answers

Answer 1
Answer:

The probability of getting heads in the first two trials is 2/8.

What is the probability of getting heads in the first two trials?

Probability calculates the chances that an event would happen. The likelihood of the event occurring lies between 0 and 1. It is zero if the event does not occur and 1 if the event occurs.

Probability of getting heads = heads , heads, tails, tails

This is a 25% probability which is equivalent to 2/8.

To learn more about probability, please check: brainly.com/question/541542
Answer 2
Answer: 4/8 is equal to 1/2. While this is true of one coin toss, it is not a 50% chance if you toss the coin twice. In tossing the coin twice you have the options of: heads, tails, heads, tails (One head and one tail per coin). Since there are four options, it is a 25% chance you will get heads twice in a row. 25% equals 1/4 which equals 2/8.

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The cost for operating the childminding room is $350 per day. In order to cover the daily operating costs how many childminding payments are needed?childminding $8.50 per child, number of children ?

Answers

at least 42 children.
To find the awnser, simply take 350$ and divide it by 8.50$. Round to the nearest whole number, and you get at least 42 children.

What is 2×(-5)-(-8)=? cause I need the answer for something rlly bad

Answers

The answer to this is -2

5(x + 3)= 4(x -3)
What is x?

Answers

Answer:

Step-by-step explanation:

We will have to open the bracket first followed by collecting the like terms

Open the bracket first

5(x+3)=4(x-3)

5x+15=4x-12

Collect like terms

5x-4x=-12-15

x=-27

So the final answer is-27

Answer:

-27

Step-by-step explanation:

5(x+3) = 4(x-3)

5x + 15 = 4x - 12

5x - 4x = -12 - 15

X = -27

The expression .25(2d+1) represents the fines per day, d, for overdue books. Which expression is equivalent to .25(2d+1)? Name the property that describes the equivalent expression.A. .252d+1
B. .50d+.25
C. 2d+.25
D. .50d+1

Thanks so much if your respond!
I mostly need help on the name the property.

Answers

B.
This is something called the distributive property. How do you do that?

Multiply the number outside the parenthesis in this case; .25. to the number within the parenthesis; the coefficient "2d" and "1".

Therefore, it's .50d+.25. Hope this helps!

The original price is $60, the retail price is $84. find the percent of decrease?

Answers

Answer:

60*100 divide 84

Step-by-step explanation

HELP ME PLS!!!

What numbers do I multiply to find the volume

Answers

5x2x2 and 4x5x7 is the answer 

hope i helped^-^
Length x width x height so 5x2x2 and 4x5x7
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