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irina [24]
3 years ago
7

A 9 inch candle burns -2/3 inch per hour. How long will it take the candle to burn completely?

Mathematics
2 answers:
Luda [366]3 years ago
5 0
Gbbdnn sbxrbrndmndnsmxnnnbbbd
yaroslaw [1]3 years ago
4 0
I'm pretty sure that it is 9 hours. Tell me if I'm right or wrong....
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A red die is tossed and then a green dieis tossed. What is the probability thatthe red die shows a six or the green dieshows a s
mr_godi [17]

Let's call the event of the red die to show a six as event A, and the event of the green die to show a six as event B.

The theoretical probability is defined as the ratio of the number of favourable outcomes to the number of possible outcomes. On both dices, we have 6 possible outcomes(the numbers from 1 to 6), with one favourable outcome(the number 6), therefore, the probabilities of those events are:

P(A)=P(B)=\frac{1}{6}

Each roll is independent from each other, then, the probability of both events happening simultaneously is given by their product:

P(A\:and\:B)=P(A)P(B)

Using the additive rule of probability, we have the following equation for our problem:

\begin{gathered} P(A\:or\:B)=P(A)+P(B)-P(A\:and\:B) \\ =P(A)+P(B)-P(A)P(B) \\ =\frac{1}{6}+\frac{1}{6}-\frac{1}{6^2} \\ =\frac{2}{6}-\frac{1}{36} \\ =\frac{12}{36}-\frac{1}{36} \\ =\frac{12-1}{36} \\ =\frac{11}{36} \end{gathered}

the probability that the red die shows a six or the green die shows a six is 11/36.

7 0
1 year ago
The sum of two times Michael's age and 5 is 47. Write an equation and find Michael's age.
Sliva [168]
2x+5=47, solve algebraically to find x, the answer
5 0
3 years ago
If 10% of x is 20, what is 23% of x?<br> A. <br> 33<br> B. <br> 46<br> C. <br> 200<br> D. <br> 230
dusya [7]

Answer:

46

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
What is answer for 10+(3+4-6+8) by using order of operation
Zina [86]

Answer:

The value of given expression is 19.

Step-by-step explanation:

The given expression is

10+(3+4-6+8)

According to the rule of BODMAS the order of operations is Bracket, Of, Division, Multiplication, Addition and Subtraction.

First we have to simplify the value of bracket.

10+(3+4-6+8)=10+(15-6)

10+(3+4-6+8)=10+9

10+(3+4-6+8)=19

Therefore the value of given expression is 19.

3 0
3 years ago
Read 2 more answers
Fill in the blank with a constant, so that the resulting quadratic expression is the square of a binomial.
san4es73 [151]
121.

Check: x^2+22x+121=(x+11)^2
6 0
3 years ago
Read 2 more answers
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