waheedjannoo waheedjannoo
  • 03-06-2020
  • Mathematics
contestada

The ratio of the number of boys to the number of girls in a class is 12:13 What percentage of the class are boys?

Respuesta :

lobs
lobs lobs
  • 03-06-2020

48%

Step-by-step explanation:

add the ratio together which is 25

pick the ratio of boy

divide 12 by 25 and multiply 100

12/25×100= 48%

Answer Link
dannielle
dannielle dannielle
  • 03-06-2020

Answer:

48%

Step-by-step explanation:

b/g=12/13

so b/12=g/13=k

b=12k

g=13k

so b+g=25k so k=b+g/25

b=12*(b+g)/25=12*4*(b+g)/25*4=48(b+g)/100

so 48%  are boys

Answer Link

Otras preguntas

What is the value of q?
Pls help never taught I’m really confused and I rlly need help
How does storytelling help imagine the future?
How did tyrants attempt to gain the approval of common citizens?
Laboratory experiments, observational field studies, and model-building are all examples of different forms of scientific investigations. In what way do laborat
Jane’s favorite fruit punch consists of pear, pineapple, and plum juices in the ratio 5:2:3. Chapter Reference How much punch can she make if she has only 6 cu
what is one example of trench warfare ?
Select the correct answer from the drop-down menu.During the (Scientific Revolution, Renaissance, Industrial Revolution), European intellectuals rejected many t
why do bacteria thrive even in hostile environments
How many heads would you expect if you flipped a coin twice? First, fill in the table below with the correct probabilities. Hint: The sample space for flippin