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Masja [62]
3 years ago
11

How do you solve a 3x3 system of equations.

Mathematics
1 answer:
Kazeer [188]3 years ago
7 0

Answer: well it depends on what comes first but 9

Step-by-step explanation:

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Please help will give brainliest
deff fn [24]

Since the sum of the probabilities of all possible outcomes must be 100%, we can deduce the following:

  • Cooking in under 20 minutes: 10%
  • Cooking between 20 and 30 minutes: 85%
  • Cooking in more than 30 minutes: 5%

In fact, the probabilities of cooking in less than 20 or more than 30 sum up to 15%, which means that the remaining outcome (i.e. cooking time between 20 and 30) must complete this probability to 15, and in fact 15+85=100.

That being said, all three answers are simply a combination of these three scenarios: let C be the cooking time, for aesthetic reasons:

P(C\geq 20) = P(20 \leq C \leq 30)+P(C\geq30) = 85\%+5\%=90\%

P(20 \leq C \leq 30) = 85\%

P(C\leq 30) = P(C\leq20)+P(20 \leq C \leq 30) = 10\%+85\%=95\%

3 0
2 years ago
How do you find the missing height of a triangle?
g100num [7]

Answer:

Use the Pythagorean theorem

Step-by-step explanation:

The pythagorean theorem is a^{2} +b^{2} =c^{2} where a is a height, b is a height, and c is the hypotenuse, which is the longest side of a triangle. For example, if the triangle has two side with lengths of three and four we would put them into the equation to get:

3^{2} +4^{2} =c^{2}

Simplify the equation to get:

9+16=c^2

Add 16 and 9 to get 25 and take the square root of both sides:

\sqrt{25} =c

The sqrt of 25 is 5. Therefore, the length of the hypotenuse, or c, is 5.

8 0
2 years ago
Read 2 more answers
A school theater can sell 87 tickets for show. if 9 have been sold how many tickets are still left to be sold
shutvik [7]

Answer:

78 tickets left to be sold

Step-by-step explanation:

87-9=78

8 0
2 years ago
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Please help me asap with number 20 and explain please
kow [346]

Answer:

c

Step-by-step explanation:

because it is increasing exponentially

6 0
2 years ago
A party planner is preparing gift bags for an event. She has purchased a large box of individually wrapped chocolates to divide
LenKa [72]
The best answer best on the information provided would be chocolates per bag.
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3 years ago
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