2 years ago

1

1 answer:

3 0

C. The answers is 4:10 because she has 4 tetras for every 10 goldfish. It says a ratio of tetras to goldfish so tetras would be first. Meaning your answer is 4:10. ( you could simplify to 2:5 but that is not an answer option)

You might be interested in

Fine lowest common values for x and y variables of A[4x - 7y = 2] <br> B[3x - 3y = 6]

OLEGan [10]

3x -3y = 6

or, 3(x -y)= 6

or, x-y =6/3

or, x-y = 2

or, x=2+y........eqn(i)

4x - 7y = 2

substituting the value of x from eqn(i)

or, 4(2+y) -7y = 2

or, 8 + 4y -7y = 2

or, -3y = 2-8

or, y = -6/-3

■ y=2

so in eqn(i)

x= 2+y

x= 2+2

■x = 4

3 0

3 years ago

What's the property to (x/y)^3=x^3/y^3

Sphinxa [80]

Answer:

Power of a quotient property

Step-by-step explanation:

It is power of a quotient property, when you have different bases, whose quotient(division) is raised to the same power, it is equal to dividing, each base raised to same power.

Here, x and y are different bases and 3 is the common power to both of them.

In general for any power, say m :

$(\frac{x}{y} )^{m} = \frac{x^{m} }{y^{m}}$

Because, $(\frac{x}{y} )^{m} = \frac{x}{y} \times \frac{x}{y} \times\frac{x}{y}.... m times$

And, $(\frac{x}{y} )^{3} = \frac{x}{y} \times \frac{x}{y} \times\frac{x}{y}$

i.e $(\frac{x}{y} )^{3} = \frac{x^{3} }{y^{3}}$

7 0

3 years ago

The expression 200 - 16t2 models the height in feet of an object that falls from the initial height of 200 feet t seconds after

suter [353]

Answer:

Concept: Modeling expressions

We are given the equation
$200 - 16 {t}^{2}$
We want to find the time after 0.75 seconds given that t is represented in seconds.
Hence we do
$200 - 16(0.75)^{2}$
Hence we get the answer to 191 feet