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BlackZzzverrR [31]
3 years ago
8

Help me plz the answer is d right i dont reamber

Mathematics
1 answer:
Nat2105 [25]3 years ago
8 0

Answer:

C. The total amount spent on drinks by Andrew.

Step-by-step explanation:

y itself would be the number of drinks purchased, and 2.5 is the cost. And since is is 2.5y then it represents the total amount.

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Dependent and Independent Events
Inessa05 [86]

Answer:

Step-by-step explanation:

Hello!

If you consider the 6-sided dice to be balanced, then each result has the same probability of occurrence: P(1)=P(2)=P(3)=P(4)=P(5)=P(6)= \frac{1}{6}

And each time Tom rolls the dice is independent of the other times, this means that you can disregard all previous rolls and calculate the 10nth time as if it is the 1st one.

Be the event A: "Tom rolled the dice for the 10nth time and obtained a 6"

The probability of A occurring will be P(A)= 1/6

On the other hand, the complement of "A" will be A^c: "Tom rolled the dice for the 10nth time and didn't obtain a 6"

This means he could obtain a 1 or a 2 or a 3 or a 4 or a 5

You can calculate the probability pf this event by adding the probability of obtaining each value P(A^c)= P(1)+P(2)+P(3)+P(4)+P(5)= 1/6*5= 5/6

Or by subtracting the probability of A to the total probability of the sample space:

P(A^c)= 1 - P(A)= 1 - 1/6= 5/6

I hope this helps!

5 0
3 years ago
What does x equal in :<br> 19=15x+14
umka21 [38]
19=15x+14\ \ \ \ \ \ \ \ |subtract\ 14\\\\19-14=15x\\\\15x=5\ \ \ \ \ \ \ \ \ |:15\\\\x=\frac{5}{15}=\frac{1}{3}
6 0
3 years ago
Read 2 more answers
Can someone please help me on this
Tanzania [10]

a=2(-2)-1 = -4-1 =-5\\\\b=2(-1)-1 = -2 - 1 = -3\\\\c=2(1)-1 = 2-1 = 1\\\\d=2(2) -1 = 4 -1  =3

7 0
2 years ago
Question #5:<br> Find the area of the composite shape.<br> 30 ft<br> 20 ft
pentagon [3]
350 because 25x10 is 250 and 20x5 is 100 so you add them and get 350
8 0
3 years ago
How do I find x in this problem?
torisob [31]

Answer:

(6-2)×180 = 720

101+154+72+123+145+x=720

595 + x = 720

x = 720-595

x= 125

5 0
2 years ago
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