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kkurt [141]
2 years ago
8

Help please photo is above

Mathematics
1 answer:
Zina [86]2 years ago
3 0

Answer:

y = 5

x = 10

Step-by-step explanation:

-4(2y) + 11y

-8y + 11y = 15

3y = 15

/ 3 /3

y = 5

x = 10

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A bake sale earned 13.25 dollars. If the bake sale had 6 more bake sales, and they earned the same amount how much money did the
Nikolay [14]

]Answer:

79.5

Step-by-step explanation:

just multiply 13.25 by 6 :D hope that helps

5 0
3 years ago
Evaluate . | 6a |- 10 for a = - 7
Ilia_Sergeevich [38]
The answer would be 32. This is because once you input -7 you multiply -7 and 6 and end up with -42 but since it is in absolute value it turns into positive 42. Now it is 42 - 10. At this point all you do is subtract which will get you 32. Hope this helps ; )
8 0
3 years ago
Read 2 more answers
Crime and Punishment: In a study of pleas and prison sentences, it is found that 45% of the subjects studied were sent to prison
Gala2k [10]

Answer:

(a) The probability of getting someone who was not sent to prison is 0.55.

(b) If a study subject is randomly selected and it is then found that the subject entered a guilty plea, the probability that this person was not sent to prison is 0.63.

Step-by-step explanation:

We are given that in a study of pleas and prison sentences, it is found that 45% of the subjects studied were sent to prison. Among those sent to prison, 40% chose to plead guilty. Among those not sent to prison, 55% chose to plead guilty.

Let the probability that subjects studied were sent to prison = P(A) = 0.45

Let G = event that subject chose to plead guilty

So, the probability that the subjects chose to plead guilty given that they were sent to prison = P(G/A) = 0.40

and the probability that the subjects chose to plead guilty given that they were not sent to prison = P(G/A') = 0.55

(a) The probability of getting someone who was not sent to prison = 1 - Probability of getting someone who was sent to prison

      P(A') = 1 - P(A)

               = 1 - 0.45 = 0.55

(b) If a study subject is randomly selected and it is then found that the subject entered a guilty plea, the probability that this person was not sent to prison is given by = P(A'/G)

We will use Bayes' Theorem here to calculate the above probability;

    P(A'/G) =  \frac{P(A') \times P(G/A')}{P(A') \times P(G/A') +P(A) \times P(G/A)}      

                 =  \frac{0.55 \times 0.55}{0.55\times 0.55 +0.45 \times 0.40}

                 =  \frac{0.3025}{0.4825}

                 =  <u>0.63</u>

6 0
3 years ago
Find the Least Common Multiple of 9 and 20.
Dmitriy789 [7]
180, because 9 and 20 don’t have any common multiple (both numbers couldn’t be simplified)
8 0
3 years ago
HELP! Drag each scenario to show whether the final result will be greater than the original value, less than the original value,
kogti [31]

Answer:

<u>Same as the original:</u>

-->A 15% increase followed by a 15% decrease

--> A 25% decrease followed by a 50% increase

-->A 50% decrease followed by a 100% increase

<u>Greater than the Original:</u>

-->A 20% decrease followed by a 25% decrease

<u>Less than the Original:</u>

-->A 75% increase followed by a 50% decrease

Step-by-step explanation:

<em>Example</em><u><em>#1</em></u><em>: I did 15% increase is 15% so followed by a -15%(decrease). The sale stayed the same.</em>

<em>Example</em><u><em>#2:</em></u><em> -20%+25%=5% *greater than the original</em>

<em>Example</em><u><em>#3</em></u><em>: If the percentage came to 0%, it stayed the same(same as original.) </em>

<em />

Hope this helps!!

5 0
3 years ago
Read 2 more answers
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