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Phoenix [80]
3 years ago
7

8x-9y=19 4x+y=-7 How Do I Do This Type Of Math

Mathematics
1 answer:
astraxan [27]3 years ago
4 0
8x-9y=19
4x+y=-7
 Multiply all terms of the 2nd by (9)===>  36x + 9y= 63

add (36x  9y=  63) to the 1st ===> 44x+0y = -44 ===> x=-1
replace x by this value in any of the equation & you'll get y=-3
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klemol [59]

The option third "P(Male or Type B) < P(Male | Type B)" is correct because 0.575 < 0.76

<h3>What is probability?</h3>

It is defined as the ratio of the number of favorable outcomes to the total number of outcomes, in other words, the probability is the number that shows the happening of the event.

P(Male or Type B) = (number of male + number of type B - number that are both)/total population

\rm = \dfrac{103 + 50- 38}{200 }

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P(Male | Type B) = (number of male people inside the type B)/(number of Type B people)

= 38/(38 + 12)

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Thus, the option third "P(Male or Type B) < P(Male | Type B)" is correct because 0.575 < 0.76

Learn more about the probability here:

brainly.com/question/11234923

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Step-by-step explanation:


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I need help with this please!​
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A cube has an edge lengths of 5 cm. A rectangular prism has dimensions of 5 cm, 25 cm, and 1 cm. Which of the following statemen
murzikaleks [220]

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Step-by-step explanation:

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The length of the edge of the cube (a) = 5 cm

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Formula

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3 years ago
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