67557 67557
  • 25-03-2022
  • Mathematics
contestada

Hello I need help really quick, it's about percentages

Hello I need help really quick its about percentages class=

Respuesta :

xsumbellx xsumbellx
  • 25-03-2022
30 students total, 12 boys

18/0.6 = 30
30-18=12
To check answer: 30*0.4 = 12
Answer Link
aixamendoza49
aixamendoza49 aixamendoza49
  • 25-03-2022

Answer:Let x be the total number of students in the class.

60% of x = ? (number of girls)

40% of x = 18 ( number of boys)

therefore, (2/5)x=18

x=45 ( Total number of students)

Answer Link

Otras preguntas

If antibiotics had not been discovered, how would society most likely have been affected?
If 40% of a number is 56, what was the original number
true or false much of eastern braazil has either tundra or glacier land cover
What are three examples of human features that you might use to describe a place?
How did the receding ice age help with the development of agrarian societies?
10 POINTS!!!Solve the equation 3/4t + 1/8 = 3/4 (t + 8)
What is the shortest possible time in which a bacterium could travel a distance of 8.4cm across a Petri dish at a constant speed of 3.5 mm/s?
6 to the 2nd power divided by 2(3)+4=
Which of the following did not contribute to the colonists' expectation to have representative government? interaction with colonial governors English political
The Industrial Revolution resulted in advantages for some as well as disadvantages for many. True False