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Tanya [424]
2 years ago
14

Please help this is 244 points of my grade I tried hundreds of different equations and it keeps saying its wrong Ive asked frien

ds and family and we can't figure it out please please help I will give brainlist if correct please help I need an equation

Mathematics
1 answer:
ankoles [38]2 years ago
4 0

Answer:

21.20 = 12.95 + .25m

Step-by-step explanation:

because you have to equal the bill while adding the monthly rate + (amount of minutes per call times however many minutes you call for)

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The probability of event A is x, and the probability of event B is y. If the two events are independent, which of these conditio
zzz [600]

If two events are independent, then

Pr(A\cap B)=Pr(A)\cdot Pr(B).

Use formulas for conditional probabilities:

Pr(A|B)=\dfrac{Pr(A\cap B)}{Pr(B)},\\ \\ Pr(B|A)=\dfrac{Pr(A\cap B)}{Pr(A)}.

For independent events these formulas will be:

Pr(A|B)=\dfrac{Pr(A\cap B)}{Pr(B)}=\dfrac{Pr(A)\cdot Pr(B)}{Pr(B)}=Pr(A),\\ \\ Pr(B|A)=\dfrac{Pr(A\cap B)}{Pr(A)}=\dfrac{Pr(A)\cdot Pr(B)}{Pr(A)}=Pr(B).

Now in your case Pr(A)=x,\ Pr(B)=y and Pr(A|B)=x,\ Pr(B|A)=y, Pr(A\cap B)=x\cdot y.

This shows that the only correct choice is A.

5 0
4 years ago
Read 2 more answers
in the gym one sixth of the students are 5th graders one third are fourth graders and one fourth of the remaining students are 3
Sati [7]
Dear Sunshine76, first add 1/6+1/4+1/3=3/4. Then, find 3/4 of 96 to get 24 students in 3rd grade.
5 0
3 years ago
Point e is between points D and F. If DE = x-4, EF= 2x+5 and DF= 4x-8 find x
Gemiola [76]
X=9 you take DE and EF and add them up and put it equal to DF which is the whole segment
7 0
3 years ago
hellohello, this needs to be turned in tomorrow so if you could help, i would really appreciate it. :]
Marizza181 [45]

Answer:

24 is the answer

hope this helps

have a good day :)

Step-by-step explanation:

5 0
3 years ago
What is 7/28 is equal to ________?
stealth61 [152]
7/28=7/7•4
=1/4
=0,25
So 7/28=1/4
3 0
3 years ago
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