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defon
3 years ago
5

What is the ratio of girls to boys in a class with 12 girls and 15 boys

Mathematics
2 answers:
Allisa [31]3 years ago
3 0

The ratio should look like so:

girls : boys

There are 12 girls

There are 15 boys

Let's plug these numbers into the ratio:

12 : 15

Both 12 and 15 have the greatest common factor of 3. This means that it can be reduced by dividing 3 out of 12 and 15

(12 : 15) ÷ 3

4 : 5

Hope this helped!

~Just a girl in love with Shawn Mendes

Alona [7]3 years ago
3 0
The answer is 4 to 5.
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What percent of 125 is 60?
MA_775_DIABLO [31]

<u>Answer:</u>

48%

<u>Step-by-step explanation:</u>

<u>60 </u>     x 100% = 48%

125    

<em>Hopefully this helped! Sorry if wrong. You are loved and you are beautiful/handsome!</em>

-Bee

3 0
3 years ago
In right triangle ABC, if angle A is 90 degrees, angle C is 34 degrees, and AC is 71.4, find BC.
AURORKA [14]

We are given that

In right triangle ABC, if angle A is 90 degrees, angle C is 34 degrees, and AC is 71.4, find BC.

Solution

We will first draw a diagram to illustrate the information

Above we want to find x

The method to use is SOHCAH

From the right angle triangle above we have above, we have the adjacent side and we want to find the hypotenus, so we use cosine

i.e

\cos 34=\frac{71.4}{x}

We need to solve for x here

\begin{gathered} x=\frac{71.4}{\cos 34} \\ x=86.12396152 \\ x=86.1\text{ (to the nearest tenth)} \end{gathered}

Thus, |BC| = 86.1 (to the nearest tenth

8 0
1 year ago
The Carousel in the National Mall has 4 rings of horses. Kelly is riding on the inner ring, which has a radius of 9 feet. Maya i
Alexeev081 [22]

Maya travels  4.19 feet/sec faster than Kelly !

Difference in distance is : 106.76-56.52 = 50.24 feet

<u>Step-by-step explanation:</u>

Here we have , The Carousel in the National Mall has 4 rings of horses. Kelly is riding on the inner ring, which has a radius of 9 feet. Maya is riding on the outer ring, which is 8 feet farther out from the center than the inner ring is. We need to find In one rotation of the carousel, how much farther does Maya travel than Kelly . Let's find out:

Kelly is riding on the inner ring, which has a radius of 9 feet

Total distance traveled by Kelly is circumference of circle with radius 9 feet i.e.

⇒ Distance = 2\pi r

⇒ Distance = 2(3.14) 9

⇒ Distance = 56.52feet

Maya is riding on the outer ring, which is 8 feet farther out from the center than the inner ring .

Total distance traveled by Maya is circumference of circle with radius (8+9=17) feet i.e.

⇒ Distance = 2\pi r

⇒ Distance = 2(3.14) 17

⇒ Distance = 106.76feet

Therefore , Difference in distance is : 106.76-56.52 = 50.24 feet

Now , Speed of both is give by

⇒ Speed_k_e_l_l_y=\frac{56.52}{12} = 4.71 feet/sec   And ,

⇒ Speed_M_a_y_a=\frac{106.76}{12} = 8.90 feet/sec

Faster Maya travels = 8.90-4.71 = 4.19

So , Maya travels  4.19 feet/sec faster than Kelly !

8 0
4 years ago
Charlotte has an aquarium in the shape of a rectangular prism. it is 3/4 of a foot high/ 2 and 1/2 feet long, and 1 and 1/4 feet
Anuta_ua [19.1K]
V=xyz

V=0.75(2.5)1.25

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The number y of cups of flour used to make x loaves of bread is represented by the equation y=2x. Graph the equation.
miv72 [106K]

Answer:

Step-by-step explanation:

Here you go! If you have more like these I recommend using Desmos Graphing calculator :)

3 0
3 years ago
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