avarojas avarojas
  • 02-11-2020
  • Mathematics
contestada

The ratio of boys to girls in my class is 3:4. If there are 12 boys, how many girls are
there in my class?

Respuesta :

laylaschoolemail laylaschoolemail
  • 02-11-2020

Answer:

9 girls

Step-by-step explanation:

12/4=3 boys

Multiple 3x3 to get the 9 girls

Answer Link
minnie293 minnie293
  • 02-11-2020

Answer: 16 girls

Step-by-step explanation:

Number of girls = x

3:4 = 12:x

= 3/4 = 12/x

cross multiply:

4 x 12 / 3 = 16

so there are 16 girls in the class.

Hope this helps :)

Answer Link

Otras preguntas

Solving Rational Equations. LCD Method. Show work.[tex]\frac{2}{5x} +\frac{7}{2x} = 1[/tex]
The expression x/x+4 is equal to zero when
7 (2x-3) x =9 2. 3(y+11) y=12​
Pls Help... (Write in complete sentences to explain what a budget is, how to make one, and how to balance it.)
Help me with this please I got it wrong !!
What is the [H+] of a solution with a pH of 3? Use a scientific calculator. 1 x 10-1 3 x 10-1 1 x 10-3 3 x 10-3
How did the United States government pay for war expenses? A) with loans from Axis Power nations B) raised taxes and sold bonds C) printed more m
36 POINTS. _______is the involuntary movement of the muscles that move food through the digestive system. PLEASE ANSWER RIGHT NOWWW
sources of error in an economic survey​
Helpppp plz I will give BRAINLIST alll