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Trava [24]
3 years ago
12

Three times a number plus 12 minus 5 times the same number is 22. What is the number?

Mathematics
2 answers:
Lemur [1.5K]3 years ago
7 0
Try writing the equation out but the answer is 5. Add 5+12 which is 17 then add till you get 22 so 17+5=22! That's how I do simple equations like this 
sp2606 [1]3 years ago
5 0
The number is 15
hope this helps

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A job fair was held at the Student Union. 25% of the students who attended received job offers. Of all of the students at the jo
vovangra [49]

Answer:

A) Both events are not independent.

B) Both events are not mutually exclusive

C) 8.33%

D) 80%

Step-by-step explanation:

A) Both events are not independent. This is because, If B occurs it means that it is very likely that J will occur as well.

B) Both events are not mutually exclusive. This is because it is possible for both events J and B to occur at the same time.

C) we want to find the probability that Joe who is not a business student will receive the job offer.

This is;

P(J|Not B) = P(J & Not B)/P(Not B)

Now,

P(J & Not B) = P(J) – (P(B) × P(J | B))

25% of the students who attended received job offers. Thus; P(J) = 0.25

40% were from the College of Business. Thus;

P(B) = 0.4

Among the business students, 50% received job offers. Thus;

P(J|B) = 0.5

Thus;

P(J & Not B) = 0.25 - (0.4 × 0.5)

P(J & Not B) = 0.25 - 0.2

P(J & Not B) = 0.05

Since P(B) = 0.4

Then, P(Not B) = 1 - 0.4 = 0.6

Thus;

P(J|Not B) = 0.05/0.6

P(J|Not B) = 0.0833 = 8.33%

D) This probability is represented by;

P(B | J) = P(B & J)/P(J)

P(B & J) = (P(B) × P(J | B)) = (0.4 × 0.5) = 0.2

P(B | J) = 0.2/0.25

P(B | J) = 0.8 = 80%

5 0
2 years ago
PLS HELP ME FIND THE ANSWER TO THESE 2 QUESTIONS PLEASE
lisov135 [29]

Answer:

Step-by-step explanation:

116f) 5 - |p + 6| = -8

       |p + 6| = 13

       p + 6 = 13          OR           p + 6 = -13

       p = 7                  OR           p = -19

In this case, I think you have to plot a point at 7 and -19.

116a) |7x| = 5

       7x = 5                OR             7x = -5

       x = \frac{5}{7}                   OR              x = -\frac{5}{7}

Again, I think you need to plot points at \frac{5}{7} and -\frac{5}{7}.

3 0
3 years ago
Students are son Bementary School made $305 selling 21 equally paced boxes of candy which is the best estimate to the amount eac
Nutka1998 [239]

Answer:

the best estimate for each boc cost is $15

Step-by-step explanation:

divide 305 to 21 it is near 15

5 0
3 years ago
Solve using a2 + b2 = c2 <br> show ur work please :)
Brrunno [24]
So 90^2+90^2=c^2
8100+8100=c^2
16200=c^2
C= ~127.28
5 0
3 years ago
What is the approximate value of x in the equation below. log_3/4 25 = 3x-1
yuradex [85]

Answer: The approximate value of x is -3.396

Step-by-step explanation:

Given:  

Now,to find the value of x.

Use logarithm rule:  

We have,

Now,

Using value of:   and  we get,

on simplify:

Adding 1 both the sides, we get

Therefore, the approximate value of x for the equation    is  -3.396.

=

Step-by-step explanation:

5 0
2 years ago
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