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Hitman42 [59]
3 years ago
6

PLEASE HELP QUESTION 31

Mathematics
1 answer:
KonstantinChe [14]3 years ago
7 0

Answer:

D. LN = KM is not correct

Step-by-step explanation:

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Can someone help me please.... with number 6,7,8,9
Alenkasestr [34]

Answer :

6. x=28

7.x =6

8. x =9

9. x =9

Step-by-step explanation:

\frac{x + 2}{10}  = 3

x + 2 = 3 \times 10 \\ x + 2 = 30 \\ x = 30 - 2 \\ x = 28

6.

(x+2)/10 = 3

Cross multiply

x+2 = 10 ×3

x+2 =30

Collect like terms and simplify

x =30-2

x = 28

7.

8x + 9 - 5x = 27 \\ 8x - 5x = 27 - 9 \\ 3x = 18

\frac{3x}{3}  =  \frac{18}{3}  \\x  = 6

8x +9 -5x= 27

Collect like terms and simplify

8x-5x =27-9

3x =18

Divide both sides of the equation by 3

3x/3 = 18/3

x = 6

8.

10x+8=8x+26

Collect like terms

10x-8x=26-8

2x = 18

Divide both sides of the equation by 2

2x/2 = 18/2

x = 9

9.

2(x-5)+4x=x+35

Use 2 to open the bracket

2 × x =2x

2×(-5) =-10

2x-10+4x =x+35

Collect like terms and simplify

2x+4x-x = 35+10

5x = 45

Divide both sides of the equation by 5

5x/5 = 45/5

x =9

7 0
4 years ago
Find the missing probability.
Westkost [7]

The value of the missing probability is:

P(A) = 1/5

So the correct option is D.

<h3>How to find the missing probability?</h3>

First, we know that:

P(A∩B) = probability that events A and B are true = 3/100

And we also know that:

P(B|A) = probability that event B is true given that event A is true = 3/20

Here we have the rule:

P(A∩B) = P(B|A)*P(A)

Replacing the first two:

3/100 = (3/20)*P(A)

Solving for P(A), we get:

(3/100)*(20/3) = 1/5 = P(A).

So we conclude that the correct option for the missing probability is the one in option D.

If you want to learn more about probability:

brainly.com/question/25870256

#SPJ1

4 0
2 years ago
Find the missing value in the ratio table. Then write the equivalent ratios.
joja [24]
Flutes-10, 5, 2
Clarinets- 8, 12, 16
10:8=5:4
5:12
2:16=1:8
Hope this helps!
3 0
3 years ago
Jeremy has $5.30 in nickels. Which equation can be used to find how many nickels, x, Jeremy has?
lesantik [10]
0.05x=5.30 is the answer
7 0
4 years ago
Read 2 more answers
If f(x)=x/2-3and g(x)=3x^2+x-6 find (f+g) (x)
olga_2 [115]

Answer:

3x^2+1.5x-9

Step-by-step explanation:

(f+g) (x)

=f(x)+g(x)

=x/2-3+3x^2+x-6

=3x^2+1.5x-9

3 0
4 years ago
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