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tia_tia [17]
3 years ago
8

HELP PLEASE

Mathematics
2 answers:
poizon [28]3 years ago
7 0
Your answer equals D
krek1111 [17]3 years ago
6 0

Answer:  The correct option is (D) \dfrac{13}{18}.

Step-by-step explanation:  Given that a bucket hold holds 10 white golf balls, 3 pink golf balls, and 5 yellow golf balls. Jason selects 1 golf ball from the bucket at random.

We are to find the probability that the golf ball he selects is white or pink.

Let, 'A' denotes the event that the golf ball that Jason selects is either white or pink.

Then, n(A) = 10 + 3 = 13.

Let, 'S' denotes the sample space for the experiment.

Then, n(S) = 10 + 3 + 5 = 18.

Therefore, the probability that the probability that the golf ball Jason selects is white or pink is given by

P(A)=\dfrac{n(A)}{n(S)}=\dfrac{13}{18}.

Thus, the required probability is \dfrac{13}{18}.

Option (D) is correct.

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Liang has a goal of walking at least 18 miles. She walks at a rate of 4 miles per hour. Which inequality can Liang use to find h
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F (4h>18)

How To Do It:

She's walking at a rate of 4 miles per hour. Which means that you would be multiplying 4 by the amount of hours Liang walks(4h). The next part of the inequality is the sign and the other value. To get this from the equation we see that it says she must walk at least 18 miles. Meaning that the 4h will always be greater than the 18 that is on the other side.

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4 years ago
Which steps could be part of the process in algebraically solving the system of equations, y + 5x = x2 + 10 and y = 4x – 10? Sel
dolphi86 [110]

Answer:

That would be :

 4x – 10 = x2 – 5x + 10  ( y = 4x - 10 is substitute for y)

 PROOF:        y + 5x = x² + 10

                     (4x - 10) + 5x = x² + 10

                      4x - 10  =  x² -5x + 10

    0 = x2 – 9x + 20  (liked terms are grouped and simplified)

PROOF:      4x - 10  =  x² -5x + 10

                   4x = x² -5x + 10 + 10

                    0  = x² -5x -4x + 20

                    0  = x² - 9x + 20

Solving:

             x² - 9x + 20 = 0 

             x² - 5x - 4x + 20 = 0

             (x - 5) (x - 4)  = 0

          ⇒ x = 4  (as question says) OR x = 5

Step-by-step explanation:

hope this helps

8 0
3 years ago
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