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

A bowl of fruit is on the table.  It contains 3 apples, 5 oranges, and 2 pears.  Ryan and Kenneth come home from school and, at the same time, randomly grab one
what is the answer to 9n=45 ?
HOW CAN 5 PEOPLE equally SHARE 4 BROWNIES IN FRACTION TERM?
hat was the first military setback for Hitler's forces?
Amusement parks are a great place to see Newton's laws of motion in action. Choose your favorite ride and describe the parts of the ride that illustrate each of
16d - (4 - 5d) = -67 Please help me find d
Find the solution to the following equation by transforming it into a perfect square trinomial.* x2 + 2x = 8
Which European country sent the most settlers to Brazil?
What effect does adding more loops to the wire coil have on the electromagnet?
Which of the following is an example of pure research? Creating new elements to study their properties Producing plastics that are heat-resistant to use in oven