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Delicious77 [7]
2 years ago
13

Solve. Use the strategy "work backward."

Mathematics
1 answer:
cestrela7 [59]2 years ago
8 0

Let that be x

ATQ

\\ \rm\Rrightarrow 3x-6/5=9

Arrange accordingly to work backwards(Every thing is reversed)

\\ \rm\Rrightarrow 9(5)+6/3=x

\\ \rm\Rrightarrow 45+6/3=x

\\ \rm\Rrightarrow 51/3=x

\\ \rm\Rrightarrow x=17

.

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Answer:

4567890

Step-by-step explanation:

4e576890

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2 years ago
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Jeff weighed 190 pounds and lost 1/4 pound each week. Allan weighed 127 pounds and gained 5/8 pound each week. After how many we
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5 0
3 years ago
Consider the following cumulative probability distribution.
Marat540 [252]

The solution  P(x \leq 4),p{x= 3), p(2 \leq * \leq 4)  is mathematically given as

  • P(2 \leq X \leq 4)=0.84
  • P(X=3)= 0.17
  • P(2 < =X\leq 4)=0.53

<h3>What is the solution P(x \leq 4),p{x= 3), p(2 \leq * \leq 4)?</h3>

Generally, the equation for the Probability of P(X=3) is mathematically given as

b)

P(X=3) = P(X \leq 3)-P(X\leq 2)

Therefore

P(X=3)= 0.65-0.48

P(X=3)= 0.17

c)

P(2\leq X\leq 4) = P(X\leq 4)-P(X\leq 1)\\\\\\P(2\leq X\leq 4) = 0.84-0.31'

P(2 < =X\leq 4)=0.53

a)

P(2\leq X\leq 4)=0.84

Read more about cumulative probability distribution.

brainly.com/question/19884447

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7 0
2 years ago
Plz help me with 13-16
svetlana [45]

Answer:

13) x = 10

14) x = 22

15) x = 12

16) x = -15

Step-by-step explanation:

13) 4x+5x=9x;90/9=10

14) 45-1=44;44/2=22

15) 37-1=36;36/3=12

16) -54+26=-28;x-28=3x+2;x=-15

6 0
3 years ago
Solve the system 8y-5z=23 3y-2z=6<br><br> 100 POINTS
Hatshy [7]

Answer:

z = 21 ; y= 16

Step-by-step explanation:

first of all we have to isolate a variable.

In second expression we can obtain:

3y = 2z+6

y = 2/3 z + 2

now we have to substitute this value in the first equation and solve it

8(2/3z+2)-5z = 23

16/3z + 16 -5z = 23

16z +48 - 15z = 69

z = 21

now we have to substitute z in the second equation:

y = 2/3 (21) +2

y = 14+ 2 = 16

y = 16

6 0
3 years ago
Read 2 more answers
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