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omeli [17]
3 years ago
5

If 45 cookies will serve 25 students, how many cookies are needed for 30 students

Mathematics
1 answer:
spayn [35]3 years ago
7 0

So for this, we will be doing a proportion. In this case, our proportion is \frac{45}{25}=\frac{x}{30}

  1. Firstly, cross-multiply: 25x=1350
  2. Next, divide both sides by 25, and your answer will be x=54

In context, <u><em>to feed 30 students you need 54 cookies.</em></u>

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An initial population of 20 rabbits triples every half year. The function f(x) = 20(3^x) gives the population after x half-perio
luda_lava [24]

The number of rabbits that there will be in 3 years is 14,580.

<h3>What is the number of rabbits in 3 years?</h3>

The growth rates of the rabbits is an exponential growth. The formula that can be used to represent the population of the rabbits in 3 years is:

f(x) = 20(3^x)

Where x represents the number of years. The number of years is 6(3 x 2)

20 x 3^6 = 14,580

To learn more about future value, please check: brainly.com/question/18760477

6 0
3 years ago
Find the​ vertex, focus, and directrix of the parabola whose equation is given below. y-7=1/8(x-2)^2
VLD [36.1K]

Answer:

Step-by-step explanation:

7 0
3 years ago
A<br> Find tan a.<br> r<br> √5,-√7)<br> ✓[?<br> Enter
Virty [35]

Answer:

tan(\alpha)=-\frac{\sqrt{35}}{5}

Step-by-step explanation:

Tan can be defined as: \frac{sin(\theta)}{cos(\theta)} as it simplifies to opposite/adjacent. If you know a bit about the unit circle, you'll know that the x-coordinate is going to be cos(theta) and the y-coordinate is going to be sin(theta). Since the sin(theta) is defined as opposite/hypotenuse, and the hypotenuse = 1, so sin(theta) is defined as the opposite side, which is the y-axis. Same thing goes for cos(theta), except the adjacent side is the x-axis.

Using this we can define tan

sin(\alpha)=-\sqrt{7}\\cos(\alpha)=\sqrt{5}\\\\tan(\alpha)=-\frac{\sqrt{7}}{\sqrt{5}} * \frac{\sqrt{5}}{\sqrt{5}}\\tan(\alpha)=-\frac{\sqrt{7*5}}{5}\\tan(\alpha)=-\frac{\sqrt{35}}{5}\\

8 0
2 years ago
Read 2 more answers
The splitting apart of one cell to form two new cells is called ____
ohaa [14]

mitosis

Mitosis is a process where a single cell divides into two identical daughter cells (cell division). During mitosis one cell. divides once to form two identical cells. The major purpose of mitosis is for growth and to replace worn out cells.

6 0
3 years ago
1/4 (dot) 3/5 simplifily
stich3 [128]

Answer: 1/20 (fraction) or 0.05 (decimal)

Step-by-step explanation:

first i like to make them a decimal so its easier.

1/4 = 0.25

1/5 = 0.2

multiply 0.25 and 0.2 = 0.05

make 0.05 a fraction

1/20

simplify. (it's already in its simplest form)

the answer is 1/20 as a fraction or 0.05 as a decimal.

(i dont know which one ur teacher wants u to do fraction or decimal?)

3 0
3 years ago
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