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2 years ago

How many 3/4s are in 2? Write a multiplication AND a division equation to represent the situation.

2 answers:

5 0

Well we have 2/(3/4)= 8/3
If you want to check if you’re right or not, just say that how many 3/4s you need to give you 2. You need 1/4+ 3/4 to give you 1, so you have to add 4/4 to give you 2. You need to have 8/4 to give you2, but the question says how many 3/4 we have in 2. So in general you have 8/3 of 3/4s to give you 2.
8/3 * 3/4= 2
Sorry if it makes you confused.

irinina [24]2 years ago

3 0

So the division equation would be 2 divided by 3/4 which is 2 and 2/3

and the multiplication problem would be 3/4 times 2 and 2/3 which would get you 2

Hope this helped
Lemme know if I was right :)

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What system of inequalities is graphed below?

kirill115 [55]

$y\geq x^2-4-blue\\\\y < x^2+6-red\\\\Answer:\text{I think is D.}\\y\geq x^2-4\\y < x^2+6$

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2 years ago

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M-6=10<br><br> What does m equal?

Sliva [168]

M is 6 more than 10 so it will be 16

8 0

3 years ago

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A bacteria colony increases in size at a rate of 4.0581e1.6t bacteria per hour. If the initial population is 36 bacteria, find t

Harrizon [31]

Answer:

1560

Step-by-step explanation:

The rate of Increase of the population (P) of the bacteria is given as:

$\frac{dP}{dt} =4.058e^{1.6t}$

$dP =4.058e^{1.6t}}dt\\Taking\: Integrals\\\int dP =4.058 \int e^{1.6t}dt\\P(t)=\frac{4.058}{1.6} (e^{1.6t} +K)\\P(t)=2.53625 (e^{1.6t} +K)$

Where k is a constant of Integration.

At t=0, P(t)=36

$36=2.53625 (e^{1.6*0} +K)\\36=2.53625 (e^{0} +K)\\36=2.53625 (1 +K)\\36=2.53625 +2.53625K\\K=13.19$

Therefore:

$P(t)=2.53625 (e^{1.6t} +13.19)\\At \: t=4\\P(4)=2.53625 (e^{1.6*4} +13.19)\\=1559.88\\P(4)=1560$

3 0

3 years ago

How to calculate the diameter of cylinder if you are given volume of 1000Litre and 224cm height

Afina-wow [57]

well, let's first notice, all our dimensions or measures must be using the same unit, so could convert the height to liters or the liters to centimeters, well hmm let's convert the volume of 1000 litres to cubic centimeters, keeping in mind that there are 1000 cm³ in 1 litre.

well, 1000 * 1000 = 1,000,000 cm³, so that's 1000 litres.

$\textit{volume of a cylinder}\\\\ V=\pi r^2 h~~ \begin{cases} r=radius\\ h=height\\[-0.5em] \hrulefill\\ V=1000000~cm^3\\ h=224~cm \end{cases}\implies \stackrel{cm^3}{1000000}=\pi r^2(\stackrel{cm}{224}) \\\\\\ \cfrac{1000000}{224\pi }=r^2\implies \sqrt{\cfrac{1000000}{224\pi }}=r\implies \cfrac{1000}{\sqrt{224\pi }}=r\implies \stackrel{cm}{37.7}\approx r$

now, we could have included the "cm³ and cm" units for the volume as well as the height in the calculations, and their simplication will have been just the "cm" anyway.

6 0

1 year ago

Someone please help ASAP

kondor19780726 [428]

I haven't done this in a while, but I'm pretty sure the answer is D, (-3, -1.)

If you were to substitute x for -3 and y for -1 in the first inequalities and simplify, it would look like this:

-1 > -3-2

-1 > - 5

And that inequality is true, because -1 is bigger than -5. Let's also substitute in the other inequality, which would be:

-1 > 2(-3) + 2

-1 > -6 + 2

-1 > -4

And -1 is bigger than -4. So, I think the answer would be D because substituting for those values of x and y would stil. make the inequalities true.

5 0

3 years ago