1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
ycow [4]
3 years ago
10

the ratio of adults to students on the field trip is 3 to 5. if there are 15 students on the field trip, how many adults are the

re. please show how you got the answer please and thank you

Mathematics
2 answers:
nlexa [21]3 years ago
8 0
9 adults is the answer

Explanation: To go from 5 kids to 15 kids you have to multiply by 3, what you do to one side of the ratio you have to do to the other, so you take the 3 adults and also multiply it by 3, which gives you 9!

Aloiza [94]3 years ago
7 0

Answer:

There would be 9 adults.

You might be interested in
What is the explicit formula for the sequence below?<br><br> 4, -12, 36, -108 ...
Temka [501]

Answer:

This is a geometry sequence (I.e each term is found by multiplying the same value to the previous term).

T1 = 4

T2 = -12 = T1 X (-3) = 4 X (-3)

T3 = 36 = T2 X (-3) = 4 X (-3)^2

T4 = 108 = T3 X (-3) = 4 X (-3)^3

The general (explicit) formula for the n-th term of this sequence is:

S(n) = 4 X (-3)^(n-1)

4 0
3 years ago
Which ordered pair could not be the coordinates for a clockwise rotation of the point W(-3, 4)?
Eduardwww [97]

Step-by-step explanation:

<em>Look at the picture.</em>

Any pair of choice can be the coordinates of the rotation of the point

W (-3, 4) clockwise.

All points have the same distance from the beginning.

The formula of a distance between the origin and a point (x, y):

d=\sqrt{x^2+y^2}

W(-3, 4)

d=\sqrt{(-3)^2+4^2}=\sqrt{9+16}=\sqrt{25}=5

(3, -4)

d=\sqrt{3^2+(-4)^2}=\sqrt{9+16}=\sqrt{25}=5

(4, 3)

d=\sqrt{4^2+3^2}=\sqrt{9+16}=\sqrt{25}=5

(-4, -3)

d=\sqrt{(-4)^2+(-3)^2}=\sqrt{9+16}=\sqrt{25}=5

(-4, 3)

d=\sqrt{(-4)^2+3^2}=\sqrt{9+16}=\sqrt{25}=5

3 0
3 years ago
Ples help me find slant assemtotes
FrozenT [24]
A polynomial asymptote is a function p(x) such that

\displaystyle\lim_{x\to\pm\infty}(f(x)-p(x))=0

(y+1)^2=4xy\implies y(x)=2x-1\pm2\sqrt{x^2-x}

Since this equation defines a hyperbola, we expect the asymptotes to be lines of the form p(x)=ax+b.

Ignore the negative root (we don't need it). If y=2x-1+2\sqrt{x^2-x}, then we want to find constants a,b such that

\displaystyle\lim_{x\to\infty}(2x-1+2\sqrt{x^2-x}-ax-b)=0

We have

\sqrt{x^2-x}=\sqrt{x^2}\sqrt{1-\dfrac1x}
\sqrt{x^2-x}=|x|\sqrt{1-\dfrac1x}
\sqrt{x^2-x}=x\sqrt{1-\dfrac1x}

since x\to\infty forces us to have x>0. And as x\to\infty, the \dfrac1x term is "negligible", so really \sqrt{x^2-x}\approx x. We can then treat the limand like

2x-1+2x-ax-b=(4-a)x-(b+1)

which tells us that we would choose a=4. You might be tempted to think b=-1, but that won't be right, and that has to do with how we wrote off the "negligible" term. To find the actual value of b, we have to solve for it in the following limit.

\displaystyle\lim_{x\to\infty}(2x-1+2\sqrt{x^2-x}-4x-b)=0

\displaystyle\lim_{x\to\infty}(\sqrt{x^2-x}-x)=\frac{b+1}2

We write

(\sqrt{x^2-x}-x)\cdot\dfrac{\sqrt{x^2-x}+x}{\sqrt{x^2-x}+x}=\dfrac{(x^2-x)-x^2}{\sqrt{x^2-x}+x}=-\dfrac x{x\sqrt{1-\frac1x}+x}=-\dfrac1{\sqrt{1-\frac1x}+1}

Now as x\to\infty, we see this expression approaching -\dfrac12, so that

-\dfrac12=\dfrac{b+1}2\implies b=-2

So one asymptote of the hyperbola is the line y=4x-2.

The other asymptote is obtained similarly by examining the limit as x\to-\infty.

\displaystyle\lim_{x\to-\infty}(2x-1+2\sqrt{x^2-x}-ax-b)=0

\displaystyle\lim_{x\to-\infty}(2x-2x\sqrt{1-\frac1x}-ax-(b+1))=0

Reduce the "negligible" term to get

\displaystyle\lim_{x\to-\infty}(-ax-(b+1))=0

Now we take a=0, and again we're careful to not pick b=-1.

\displaystyle\lim_{x\to-\infty}(2x-1+2\sqrt{x^2-x}-b)=0

\displaystyle\lim_{x\to-\infty}(x+\sqrt{x^2-x})=\frac{b+1}2

(x+\sqrt{x^2-x})\cdot\dfrac{x-\sqrt{x^2-x}}{x-\sqrt{x^2-x}}=\dfrac{x^2-(x^2-x)}{x-\sqrt{x^2-x}}=\dfrac&#10; x{x-(-x)\sqrt{1-\frac1x}}=\dfrac1{1+\sqrt{1-\frac1x}}

This time the limit is \dfrac12, so

\dfrac12=\dfrac{b+1}2\implies b=0

which means the other asymptote is the line y=0.
4 0
3 years ago
BRAINLIEST +STARSS!!!
yulyashka [42]

Answer:

The green would take 4 and the blue would take 16 times respectivly.  I did it by finding the volumes of the cups in terms of pi, then dividing it by the volume of the sink.

Step-by-step explanation:

So the volume of the whole half sphere is 512pi.

Now we have to find the volumes of the cup.

Equation: \pi r^2h

Blue cup:

\pi 2^2(8)\\\pi 4(8)\\\pi 32

It would take 16 times to drain it completly.

Green cup:

\pi 4^2(8)\\\pi 16(8)\\\pi 128

It would take 4 times to drain it completly.

6 0
2 years ago
3(3x+9)=-5-2x what is x
-BARSIC- [3]

Answer:

x=2.9

Step-by-step explanation:

3(3x+9)= -5-2x ( distribute)

9x+27= -5-2x (add 2x) (subtract 27)

11x= 32 ( divide by 11)

x= 2.9

3 0
3 years ago
Other questions:
  • I'm thinking of a ten-digit integer whose digits are all distinct. It happens that the number formed by the first n of them is d
    9·1 answer
  • Solve the linear equation.
    15·2 answers
  • What number 0.2% of 50?
    6·1 answer
  • Let f(x) = x^2 + 6 and g(x)= x+8/x . Find ( g o f)(­ -7)
    14·1 answer
  • Does the equation represent a direct variation? If so, find the constant of variation.
    12·1 answer
  • Guided Practice
    15·1 answer
  • During summer vacation, the Barton family drove from California to Oklahoma. While on their trip they noticed the cost of gasoli
    8·1 answer
  • How many strikeouts per inning if there were 36 strikeouts in 60 innings
    15·1 answer
  • Find the slope of each line (no links I’ll report)
    13·1 answer
  • What’s the answer to this problem , figure out the area and perimeter of this triangle
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!