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vitfil [10]
3 years ago
11

3. You have $320. You want to go to the movies with your friends and each ticket costs $8. How many friends can you take and sti

ll have $280 left?
320-8x=280
320+8x=280
-8x+280=320
8x-280=320
Mathematics
2 answers:
kherson [118]3 years ago
6 0

Answer: 320-8x=280

Step-by-step explanation:

320-280=40

You have 40 bucks technically

Don't forget to count yourself in (40-8=32)

32/8=4

You can bring 4 friends

The correct answer from the four selections is the first one.

320-8x=280

Ad libitum [116K]3 years ago
4 0

Answer:

4 friends

Step-by-step explanation:

first do

320-280=40

so you know you can spend forty bucks

step 2

40 divided by 8 is 5

if you are getting tickets for yourself too you can take 4 friends.

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Madison has 3 quarts of juice she gave each of her friends 2 1/2 cups of juice how many cups does Madison have left​
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Solve |6k + 12| + 9 = 9 for k.
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Step-by-step explanation:

6k + 12 + 9=9

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You want to go to graduate school, so you ask your math professor, Dr. Emmy Noether, for a letter of recommendation. You estimat
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Answer:

a

  P(G) =  0.69

b

  P(S | G) = 0.81

c

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Step-by-step explanation:

From the question we are told the

   The probability of getting into getting into graduated school if you receive a strong recommendation is  P(G |S) = 0.80

   The probability of getting into getting into graduated school if you receive a moderately good recommendation is  P(G| M) =  0.60

   The probability of getting into getting into graduated school if you receive a weak recommendation is  P(G|W) =  0.05

   The probability of getting a strong recommendation is  P(S) =  0.7

     The  probability of receiving a moderately good recommendation is P(M) =  0.2

       The probability of receiving a weak recommendation is P(W) =  0.1

      Generally  the probability that you will get into a graduate program is mathematically represented as

     P(G) =  P(S) *  P(G|S) + P(M) *  P(G|M) + P(W) *  P(G|W)

=>   P(G) =  0.7 * 0.8 +  0.2 *  0.6 + 0.1 *  0.05

=>   P(G) =  0.69

Generally  given that you did receive an offer to attend a graduate program, what is the probability that you received a strong recommendation is mathematically represented as

      P( S|G) =  \frac{ P(S) *  P(G|S)}{ P(G)}

=>    P(S|G) =  \frac{ 0.7 * 0.8 }{0.69}

=>     P(S | G) = 0.81

Generally given that you didn't receive an offer to attend a graduate program  the probability that you received a moderately good recommendation is mathematically represented as

        P(M|G') =  \frac{ P(M) *  (1- P(G|M))}{(1 - P(G))}

         P(M| G') =  \frac{ 0.2 *  (1- 0.6)}{ (1 - 0.69)}

         P(M|G') =  0.26

 

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3 years ago
Anya saw the following equation and said she can tell this is also true far any value of x. 20(x+2)+31=4(5x+10)+31​
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Answer:

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This can be solved by reasoning.

And confirmed by substituting 0 into the expression.

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