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3 years ago

Solve the inequality x−8≤ 4 or 2x+3>9 .

Mathematics

1 answer:

Phoenix [80]3 years ago

5 0

Those are the Answers

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The number of bacteria in a certain culture doubled every hour. If there were 30 bacteria present in the culture initially, how

vichka [17]

Answer:

The number of bacteria after $8th$ will be $3840$

Step-by-step explanation:

Given the initially 30 bacteria present in the culture.

Also, the number of bacteria got doubled every hour.

So, using the equation

$A=A_0r^{n-1}$

Where $A$ is number of bacteria after $n$ hours.

$A_0$ is bacteria present initially.

$r$ is the common ration, in our problem it is given that bacteria doubles every hour. So, $r=2$

And $n$ is the number of hours. In our problem we need amount of bacteria at the end of $8th$ hours. So, $n=8$

Plugging values in the formula we get,

$A=30(2)^{8-1}\\A=30\times 2^7\\A=30\times 128\\A=3840$

So, number of bacteria after $8th$ will be $3840$

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3 years ago

What graph represents the equationy = 2x – 3?

gladu [14]

Answer:

linear graph

Step-by-step explanation:

because the equation of the line is straight

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3 years ago

Logan can carry 22 pounds of jars. Each jar weighs 32 ounces. How many jars can Logan carry?

Brums [2.3K]

Answer:

11 Jars

Step-by-step explanation:

32 ounces = 2 pounds = 1 jar

So 22 divided by 2 = 11 jars

hope this helps

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3 years ago

A rubber ball is thrown against the pavement and bounces into the air. If the ball is airborne for 2.5 seconds, how long after i

miv72 [106K]

Answer:

Step-by-step explanation:

1/2 * 2.5

= 1.25 seconds

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3 years ago

Every hour of driving uses

xenn [34]

Answer:

45 gallons

Step-by-step explanation:

1 hour = 3 gallons

2 hours = 6 gallons

3 hours = 9 gallons

4 hours = 12 gallons

5 hours = 15 gallons

10 hours = 30 gallons

15 hours = 45 gallons

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3 years ago