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serious [3.7K]
3 years ago
8

Need asap!! Will give brainliest. )):

Mathematics
1 answer:
GenaCL600 [577]3 years ago
5 0

Answer:

I’m sorry I don’t know the answer I wish I could help

Step-by-step explanation:

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A radio disc jockey has 7 songs on this up coming hour's playlist: 2 are rock songs, 2 are reggae songs and 3 are country songs.
SVETLANKA909090 [29]

Answer:

Probability that song selected after first selection is rock = 2/7

Probability that song selected from the remaining after second selection is country rock = 1/2

Step-by-step explanation:

Total number of songs = 7

After first selection, probability that the song selected is rock = 2/7

After second selection, probability that the song selected from the remaining is a country song = 3/6 = 1/2

8 0
3 years ago
Find the sum and express it in simplest form (-b-5x-3)+(2b-4x+7)
vovikov84 [41]
-b - 5x - 3 + 2b - 4x + 7....combine like terms
b - 9x + 4 <==
6 0
3 years ago
Read 2 more answers
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AleksAgata [21]
X is equal to 9 and -9
4 0
3 years ago
Mr.Chen left $45,000 to his aunt when he died. This was 5% of his total worth. a) how much was Mr.Chen worth when he died? Show
marysya [2.9K]

A) Mr Chen was worth:

45,000/5 = 9,000

9,000 x 100 = 900,000

The answer is 900,00

You can also write this as an equation.

3 0
3 years ago
What is the first step to take when solving this linear system of equations by the addition-subtraction method? 2x + 4y = 3 x +
Free_Kalibri [48]

The right answer is Option D.

Step-by-step explanation:

Given equations are;

2x+4y=3    Eqn 1

x+3y=13    Eqn 2

When we use subtraction-addition method, we make one of the variables same with opposite signs so that only one variable remains after addition or subtraction.

In the given problem, we will multiply Eqn 2 with "-2" so that the x variables become equal and then we can add both the equations and solve for y.

Therefore,

The first step will be to multiply the second equation by -2 to solve the linear system of equations.

The right answer is Option D.

Keywords: linear equations, subtraction

Learn more about linear equations at:

  • brainly.com/question/8902155
  • brainly.com/question/8955867

#LearnwithBrainly

5 0
2 years ago
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