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3 years ago

Arden has 15 cards and 3 of those cards are red. What percent of her cards are red? *

Mathematics

1 answer:

Kisachek [45]3 years ago

5 0

Answer: 20%

Step-by-step explanation: 3/15 = 1/5 = .20 = 20%

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The volume of a cube can be found using the equation V = s³, where V is the volume and s is the measure of one side of the cube.

AlladinOne [14]

V = s³. Therefore, s = ³√ V

Hope that helps you

7 0

3 years ago

Suppose that the functions r and a are defined for all real numbers x as follows. r(x)=2x-1 S(x)=5x write the expressions for (r

NeTakaya

$\boxed{(r-s)(x)=-3x-1} \\ \\ \boxed{(r\cdot s)(x)=10x^2-5x} \\ \\ \boxed{(r+s)(-2)=-15}$

<h2>Explanation:</h2>

In this exercise, we have the following functions:

$r(x)=2x-1 \\ \\ s(x)=5x$

And they are defined for all real numbers x. So we have to write the following expressions:

First expression:

$(r-s)(x)$

That is, we subtract s(x) from r(x):

$(r-s)(x)=2x-1-5x \\ \\ Combine \ like \ terms: \\ \\ (r-s)(x)=(2x-5x)-1 \\ \\ \boxed{(r-s)(x)=-3x-1}$

Second expression:

$(r\cdot s)(x)$

That is, we get the product of s(x) and r(x):

$(r\cdot s)(x)=(2x-1)(5x) \\ \\ By \ distributive \ property: \\ \\ (r\cdot s)(x)=(2x)(5x)-(1)(5x) \\ \\ \boxed{(r\cdot s)(x)=10x^2-5x}$

Third expression:

Here we need to evaluate:

$(r+s)(-2)$

First of all, we find the sum of functions r(x) and s(x):

$(r+s)(x)=2x-1+5x \\ \\ Combine \ like \ terms: \\ \\ (r+s)(x)=(2x+5x)-1 \\ \\ (r+s)(x)=7x-1$

Finally, substituting x = -2:

$(r+s)(-2)=7(-2)-1 \\ \\ (r+s)(-2)=-14-1 \\ \\ \boxed{(r+s)(-2)=-15}$

<h2>Learn more: </h2>

Parabola: brainly.com/question/12178203

#LearnWithBrainly

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3 years ago

What is the area of this composite shape?<br><br><br> Enter your answer in the box.<br><br> in²

Ivanshal [37]

Answer:

Step-by-step explanation:

I'm sorry if this is wrong

4 0

3 years ago

Algebra There were 4 times the number of students in fourth grade at the basketball game.How many students attended the basketba

denis-greek [22]

Answer:

200 students attended the basketball game

Step-by-step explanation:

The complete question in the attached figure

Let

x ------> the number of students in fourth grade

s -----> the number of students at the basketball game

we know that

The number of students at the basketball game is four times the number of students in fourth grade

The linear expression is

$s=4x$ -----> equation A

$x=50\ students\ in\ fourth\ grade$ -----> equation B

substitute equation B in equation A and solve for y

$s=4(50)$

$s=200\ students\ at\ the\ basketball\ game$

therefore

200 students attended the basketball game

8 0

2 years ago

Y=12x-17 Slope what is it

oee [108]

Answer: -204

Step-by-step explanation: 12 X -17 +Y is the same thing but you can say it this way and its easier to understand but it equals -204/(negative 204) Hope this helps you! :3

6 0

3 years ago

Read 2 more answers

Arden has 15 cards and 3 of those cards are red. What percent of her cards are red? *​

Arden has 15 cards and 3 of those cards are red. What percent of her cards are red? *