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3 years ago

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There are 11 sixth grade students and 7 eighth grade students in the art club. The number of seventh grade students in the art c

lub is half the combined number of sixth and eighth grade students in the club. What is the ratio of seventh grade students in the club to the total number of students in the art club, written as a fraction in lowest terms?

2 answers:

ch4aika [34]3 years ago

6 0

Answer:

1:3

Step-by-step explanation:

(11+7)/2=9 9:27 and simplify it. There really isn’t much explaining but hope this helps.

olya-2409 [2.1K]3 years ago

4 0

Answer:

1:3

Step-by-step explanation:

You might be interested in

What is the sum of series is numbers 64&66 ?<br> Using the summation notation

iragen [17]

Answer:

64. 6138

66. 8.078125

Step-by-step explanation:

Let's take it one number at a time.

For number 64:

$6(2)^{1-1}=6$

$6(2)^{2-1}=12$

$6(2)^{3-1}=24$

$6(2)^{4-1}=48$

$6(2)^{5-1}=96$

$6(2)^{6-1}=192$

$6(2)^{7-1}=384$

$6(2)^{8-1}=768$

$6(2)^{9-1}=1536$

$6(2)^{10-1}=3072$

Sum = 6 + 12 + 24 + 48 + 96 + 192 + 384 + 768 + 1536 + 3072

Sum = 6138

For number 66:

$12(-\frac{1}{2})^{0}=12$

$12(-\frac{1}{2})^{1}=-6$

$12(-\frac{1}{2})^{2}=3$

$12(-\frac{1}{2})^{3}=-1.5$

$12(-\frac{1}{2})^{4}=0.75$

$12(-\frac{1}{2})^{5}=-0.375$

$12(-\frac{1}{2})^{6}=0.1875$

$12(-\frac{1}{2})^{7}=-0.0078125$

$12(-\frac{1}{2})^{8}=0.046875$

$12(-\frac{1}{2})^{9}=-0.0234375$

Sum = 12 + -6 + 3 + -1.5 + 0.75 + -0.375 + 0.1875 + -0.0078125 + 0.046875 + -0.0234375

or to make things simpler:

Sum = 12 - 6 + 3 - 1.5 + 0.75 - 0.375 + 0.1875 - 0.0078125 + 0.046875 - 0.0234375

Sum = 8.078125

4 0

3 years ago

HELP WITH THE QUESTIONS

tatuchka [14]

1 is 10 dimes that is what I’ll do

3 0

3 years ago

Emma and Kyle combine their eamings to pay their

guapka [62]

<h2>Hello!</h2>

The answer is:

The second option,

b.) $C(x)=40.60x+201$

<h2>Why?</h2>

We are given the functions E(x) and K(x), since they both are function of the same variable, we need to add them in order to find the correct option.

From the statement we know the functions:

$E(x)=22.75x+74$

and

$K(x)=17.85x+127$

So, adding the functions we have:

$C(x)=E(x)+F(x)$

$C(x)=(22.75x+74)+(17.85x+127)$

$C(x)=22.75x+17.85x+74+127$

$C(x)=40.60x+201$

Hence, the answer is the second option,

b.) $C(x)=40.60x+201$

Have a nice day!

6 0

3 years ago

I need help with this please no links you will be reported the same person who has answered has been giving me links and i reall

lilavasa [31]

Answer:

F, D, E, and B are all correct (10, 8, 7, and 4)

Step-by-step explanation:

4 0

3 years ago

Read 2 more answers

Kara did a survey to determine to study the types of pets that students in her school had. She surveyed 300 students and found t

julsineya [31]

Answer:

(C)81

Step-by-step explanation:

Total Number of Students =300

Percentage who had cats, n(C) = 40%

Percentage who had both cats and dogs , $n(C \cap D)$ = 12%

Percentage who had neither cats nor dogs, $n(C \cup D)'$ =45%

Now:

Universal Set, $U = n(C)+n(D)-n(C \cap D)+n(C \cup D)'$

$100 = 40 + n(D)-12+45\\n(D)=100-73\\$Percentage of those who own dogs =27\%$

Therefore:

Number of Students who had dogs

=27% of 300

=81

3 0

3 years ago