All categories

3 years ago

Please help no links please

Mathematics

2 answers:

Pachacha [2.7K]3 years ago

8 0

Answer:

9/20

Step-by-step explanation:

pashok25 [27]3 years ago

5 0

Can you comment to me because it won’t allow me to send it on here it sends me a copy but you won’t be able to click on it

explain

You might be interested in

What is 72,372÷111 people please help meeeeeeeee

Contact [7]

Answer:

Step-by-step explanation:

652

8 0

3 years ago

Read 2 more answers

☆15 POINTS AND MARKED BRAINLIEST IF CORRECT☆<br>look at the image above to view the question!

swat32

Answer:

3125 bacteria.

Step-by-step explanation:

We can write an exponential function to represent the situation.

We know that the current population is 100,000.

The population doubles each day.

The standard exponential function is given by:

$P(t)=a(r)^t$

Since our current population is 100,000, a = 100000.

Since our rate is doubling, r = 2.

So:

$P(t)=100000(2)^t$

We want to find the population five days ago.

So, we can say that t = -5. The negative represent the number of days that has passed.

Therefore:

$\displaystyle P(-5)=100000(2)^{-5} = 100000 \Big( \frac{1}{32}\Big) = 3125 \text{ bacteria}$

However, we dealing within this context, we really can't have negative days. Although it works in this case, it can cause some confusion. So, let's write a function based on the original population.

We know that the bacterial population had been doubling for 5 days. Let A represent the initial population. So, our function is:

$P(t)=A(2)^t$

After 5 days, we reach the 100,000 population. So, when t = 5, P(t) = 100000:

$100000=A(2)^5$

And solving for A, we acquire:

$\displaystyle A=\frac{100000}{2^5}=3125$

So, our function in terms of the original day is:

$P (t) = 3125 (2)^t$

So, it becomes apparent that the initial population (or the population 5 days ago) is 3125 bacteria.

3 0

3 years ago

Read 2 more answers

Ben is saving 1/5 of his weekly pay to buy a car. Right and solve an equation to find what weekly pay W results in savings of $6

lesya [120]

To solve this problem, all we have to do is to closely analyze the situation. Now we are given that the amount of saving per week is equivalent to one fifth (1 / 5) of Ben’s weekly pay (or weekly salary).

Now we are to find the weekly pay or weekly salary that result in weekly savings of $61.50. So we can see that actually the value of 61.50 is one fifth (1 / 5) of W, therefore:

(1/ 5) W = 61.50

W = 5 * 61.50

W = $307.5

<span>Therefore a weekly pay of $307.5 will result in a weekly savings of $61.50</span>

4 0

4 years ago

The average life of an automobile tire of a certain manufacturer follows a Normal distribution, with a mean of 32,000 miles and

Slav-nsk [51]

Answer:0.52

Step-by-step explanation:

Ik it for a fact

7 0