Ask question

Ask question

All categories

Y_Kistochka [10]

3 years ago

7

there are 28 students in a classroom. the ratio girls to boys 4 to 3. write and solve a proportion to find how many boys are the

re in the classroom? include labels!!!!

1 answer:

Sedaia [141]3 years ago

3 0

Total = 28

Girls. Boys.
4. 3

28/4= 7
7 x 3 = 21

ANSWER = 21

You might be interested in

Algebra 1 help please

Karo-lina-s [1.5K]

Short leg = 18 Long leg= 24 Hypotenuse= 30 My calculations were simple trial and error. I started with a trial of 10 for the short leg to begin with, averaging and estimating the appropriate proportions based off 6 additional increments. Sorry I don't have an algebraic method for you. Hope this has helped somewhat :)

7 0

3 years ago

5. How many solutions does this system of equations have?

Diano4ka-milaya [45]

Answer:

$\text{\boxed{\sf{D. \ No\ solution}}}$

Step-by-step explanation:

Isolate the term of x and y from one side of the equation.

<h3>y=-4x-9 and y=-4x-1</h3>

First, you have to substitute of y=-4x-1.

$\Longrightarrow: \sf{[-4x-1=-4x-9]}$

<u>Add by 4x from both sides.</u>

$\Longrightarrow: \sf{-4x-1+4x=-4x-9+4x}$

<u>Solve.</u>

$\Rightarrow:\sf{-1=-9}\\\\\Rightarrow: \sf{(-9)-(-1)=-9+1=-8}\\\\\Rightarrow: \sf{8=0}$

<u>Therefore, the correct answer is "D. No solution".</u>

I hope this helps. Let me know if you have any questions.

8 0

2 years ago

Find a number that when subtracted from the numerator of 13/8 and added to the denominator of 13/8 results in fraction equivalen

mariarad [96]

The answer should be 6/15

3 0

3 years ago

If 16 our of 80 students in a computer class a girls then what percent in the class are boys

mina [271]

80% is the answer to ur question

3 0

3 years ago

3) If the chocolate inside the package is 335954.96 mm, how much empty volume/space is inside the

elixir [45]

Answer:

A

Step-by-step explanation:

3 0

3 years ago