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pickupchik [31]
4 years ago
14

Solve for x -7 - 4 (2x - 1) = 21

Mathematics
1 answer:
Misha Larkins [42]4 years ago
7 0

Answer:

x=-3

Step-by-step explanation:

-7-4(2x-1)=21

-7-8x+4=21

-7+4-8x=21

-3-8x=21

8x=-3-21

8x=-24

x=-24/8

x=-3

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A bowl of buttons contains 10 MAGA [MAKE AMERICA GREAT AGAIN] buttons, 5 GND [GREEN NEW DEAL] buttons and 10 NAW [NEVER A WALL]
kondaur [170]

Answer:

a) Probability of picking Two MAGA buttons without replacement = 0.15

b) Probability of picking a MAGA and GND button in that order = 0.0833

Probability of picking a MAGA and GND button in with the order unimportant = 0.167

Step-by-step explanation:

10 MAGA [MAKE AMERICA GREAT AGAIN] buttons, 5 GND [GREEN NEW DEAL] buttons and 10 NAW [NEVER A WALL] buttons.

Total number of buttons = 10 + 5 + 10 = 25

Let probability of picking a MAGA button be P(M) = 10/25 = 0.4

Probability of picking a GND button be P(G) = 5/25 = 0.2

Probability of picking a NAW button be P(N) = 10/25 = 0.4

a) Probability of picking Two MAGA buttons without replacement = (10/25) × (9/24) = 3/20 = 0.15

b) Probability of picking a MAGA and GND button in that order = (10/25) × (5/24) = 1/12 = 0.0833

Probability of picking a MAGA and GND button in with the order unimportant = [(10/25) × (5/24)] + [(5/25) × (10/24)] = 1/6 = 0.167

3 0
4 years ago
What percent of 27.5 is 17.16?
Ne4ueva [31]
100%/x%=27.5/17.16 (100/x)*x=(27.5/17.16)*x 100=1.60256410256*x divide both sides of the equation by (1.60256410256) to get x 100/1.60256410256=x 62.4=x x=62.4
3 0
4 years ago
Read 2 more answers
|5x|+5=45<br><br> can you explain this absloute value equation <br> i have a midterm
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So first, you get the absolute value to one side:
|5x|+5=45\\&#10;|5x|=40

Next, set up two equations; One where the value inside the absolute value lines is positive, and another where it is negative, and solve both for the variable:
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Your answers are 8 and -8, or +-8.
8 0
3 years ago
Read 2 more answers
The positive integers $1,$ $2,$ $3,$ $\dots$ are listed in order. What is the $1000^{\rm th}$ positive integer with an odd numbe
Ghella [55]

There are 9 positive integers with 1 digit (1 - 9).

There are 90 integers with 2 digits (10 - 99).

There are 900 integers with 3 digits (100 - 999).

There are 9000 integers with 4 digits (1000 - 9999).

And so on. It stands to reason that there are 9\times10^{n-1} integers with n digits.

Now,

1000 = 9 + 900 + 91

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2 years ago
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C is the answer to your problem have a good day
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