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2 years ago

5

Suppose there are 4,000 bacteria in a sample. The population of the bacteria doubles exponentially every hour how many hours wil

l it take for the bacteria to reach a population of 50,000

1 answer:

aleksley [76]2 years ago

6 0

After 4 hours there will be 64 000

3 - 32k
2-16
1-8

do you need exactly 50 000?

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I’m being timed!!!!!!!!!!!!!!!!!!!!!!!!

WITCHER [35]

Answer:

y=mx+b

Step-by-step explanation:

y=mx+b

If you know the slope m , and y -intercept (0,b) of a line (the point where the line crosses the y -axis), you can write the equation of the line in slope-intercept form .

7 0

3 years ago

Read 2 more answers

Denise would like to purchase a computer that costs$2000. Create and solve an inequality in order to determine the least amount

photoshop1234 [79]

The question is incomplete. Here is the complete question:

Denise earns $30 an hour. She wants to purchase a computer that costs $2000. Create and solve an inequality to determine the least amount of hours she must work in order to be able to purchase the computer.

Answer:

$30h\geq 2000\ or\\h\geq67$

Denise has to work at least 67 hours in order to buy a computer that costs $2000.

Step-by-step explanation:

Given:

Hourly earning of Denise is $30.

Let the number of hours Denise works be 'h'.

Now, total earning of Denise can be calculated using the unitary method and is given as:

$Total\ money=\textrm{Hourly earning}\times \textrm{Total hours worked}\\Total\ money=30\times h\\Total\ money=30h$

Now, total money earned by Denise must be at least $2000 in order to purchase a computer. Therefore, the inequality is given as:

$30h\geq 2000\\h\geq \frac{2000}{30}\\h\geq 66.7$

Therefore, Denise has to work at least 67 hours in order to buy a computer that costs $2000.

7 0

3 years ago

A building has a window that is 12 feet high. Stan is going to use a ladder to get up to the window and decides to keep the ladd

olasank [31]

Answer=13 feet long

This information describes a right triangle, with sides 5ft and 12ft.

a²+b²=c²
5²+12²=c²
25+144=c²
169=c²
√169=√c²
13=c

The ladder needs to be 13ft long

3 0

3 years ago

A ferryboat makes four trips to an island each day.The ferry can hold 88 people.If the ferry is full on each trip,how many passe

olga_2 [115]

Multiplication was invented to reduce the work involved in repeated addition.

... 88 + 88 + 88 + 88 = 4×88 = 352

352 passengers are carried <em>to</em> the island each day.

_____

Some questions must be answered before we can give a definite answer.

1. If the same person rides twice, are they counted twice?

2. Are passengers on the return trips (<em>from</em> the island) counted?

3. If return trip passengers are counted, is the ferry full on those trips?

4. Does every passenger to the island return the same day?

5. Does any passenger go to the island more than once per day?

4 0

3 years ago

What is half of the product of 8 1/7 and 7 4/5

UNO [17]

First we must convert these mixed numbers to improper fractions:

$8\frac{1}{7}=\frac{57}{7}$

$7\frac{4}{5}=\frac{39}{5}$

So then we need the product of these two numbers. That means to multiply:

$\frac{57}{7}* \frac{39}{5}= \frac{2,223}{35}$

But then we need the value of half of this product. So then let's multiply by one-half:

$\frac{2,223}{35} *\frac{1}{2} =\frac{2,223}{70}$

Then we can convert this from an improper fraction to a mixed number:

$\frac{2,223}{70} =31\frac{53}{70}$

And so this number is half of the product of the initial two numbers.

6 0

3 years ago