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Maslowich
3 years ago
15

How I solve 2x-1=10? Thx

Mathematics
2 answers:
Lelechka [254]3 years ago
7 0

Answer:

The answer is 5.5

Step-by-step explanation:

First add one to both sides giving you 2x=11

Then simply divide 11 by 2

Resulting in 5.5

Oxana [17]3 years ago
4 0

Answer:

x=5.5

Step-by-step explanation:

2x-1=10

   +1   +1

2x=11

divide by 2 on each side

x=5.5

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Answer:

The Answer is: (-2,1)

Step-by-step explanation:

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A soft drink company holds a contest in which a prize may be revealed on the inside of the bottle cap. The probability that each
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Answer:

The probability that the customer must open 3 or more bottles before finding a prize is 0.64

Step-by-step explanation:

In order for a customer to have to open at least 3 bottles before winning a prize, then the first two bottles shouldnt have a price. The probability that a bottle doesnt have a price is 1-0.2 = 0.8. Since the bottles are independent from each other, then the probability that 2 bottles dont have a prize is 0.8² = 0.64. Therefore, the probability that the customer must open 3 or more bottles before finding a prize is 0.64

5 0
3 years ago
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A pilot can travel 450 miles with the wind in the same amount of time as 360 miles against the wind. Find the speed of the wind
Lunna [17]

Given:

A pilot can travel 450 miles with the wind in the same amount of time as 360 miles against the wind.

Pilot's speed in still air is 315 miles per hour.

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The speed of the wind.

Solution:

Let the speed of wind be x miles per hour.

Speed with wind = 315+x miles per hour

Speed against wind = 315-x miles per hour

We know that,

Time=\dfrac{Distance}{Speed}

According to the question,

\dfrac{450}{315+x}=\dfrac{360}{315-x}

Divide both sides by 90.

\dfrac{5}{315+x}=\dfrac{4}{315-x}

By cross multiplication, we get

5(315-x)=4(315+x)

5(315)-5x=4(315)+4x

5(315)-4(315)=4x+5x

(5-4)315=9x

Divide both sides by 9.

\dfrac{(1)315}{9}=x

35=x

Therefore, the speed of wind is 35 miles per hour.

4 0
3 years ago
how do you find the volume to the nearest cubic in of a cone whose radius is 12 in and hieght is 15 inches
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In high school, there's no other way.

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Volume = (1 / 3) π (12 inches)² (15 inches)

Volume = 720 π = 2,261.95 cubic inches

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Are you ok? do you want to talk about it babe?
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