jane5870 jane5870
  • 19-07-2019
  • Mathematics
contestada

4/5 of a class is girls and there are 8 boys. How many total in class.

Respuesta :

Gasaqui
Gasaqui Gasaqui
  • 15-08-2019

Answer:

40

Step-by-step explanation:

a+b=c

a=girls

b= boys

c= total

the statement tell us:

4/5 of a class is girls:

a=(4/5)*c

boys=b=8

c=a+b

so we have:

c=(4/5)*c + 8

c-(4/5)*c=8

(5c-4c)/5 = 8

c/5=8

c=8*5

c=40

total=40

Answer Link

Otras preguntas

How does the word obdurate develop the speaker's ideas?
Whic best describes the differences between George and Lennie?
un resumen sobre el impacto del Islam en la tecnologia de viajes.
Proteins help maintain fluid and electrolyte balance. When protein consumption is chronically inadequate, a condition can occur in which fluids build up in inte
what pattern would you use to define an interface for creating an object, but let the subclasses decide which class to instantiate. it let the instantiation dif
The given table of values represents a linear equation. What is the slope? X 1 2 3 4 y 5 8 11 14
how much does a suitcase weight if it has a mass of 22.5kg
to assess the effect that the changes will have on the organization's personnel management practices, the organization should conduct aanswer feasibility study
Selecting the number of bins is an important decision when working with histograms. Are there any rules or recommendations for choosing the number or width of b
Nosotros a la clase de español todo los días