NevanDsouza16
NevanDsouza16 NevanDsouza16
  • 01-06-2021
  • Mathematics
contestada

in a school , 4/9 of the students are boys and number of girls is 90 . find the number of boys in school

Respuesta :

hnori22003
hnori22003 hnori22003
  • 01-06-2021

4/9 of the students are boys thus 5/9 students are girls.

Let " x " be the number of all students.

So we have :

5/9 × x = 90

Multiply both sides by 9/5

5/9 × 9/5 × x = 90 × 9/5

1 × x = 9 × 9 × 10 × 1/5

x = 81 × 2

x = 162

_______________________________

number of boys = 4/9 × x

n o boys = 4/9 × 162

n o boys = 162/9 × 4

n o boys = 18 × 4

n o boys = 72

Answer Link

Otras preguntas

im sad and depressed because i just got called to the library to get told i didnt mke the team for the battle of the books
A bag contains the following marbles: 8 black marbles, 12 blue marbles, 18 brown marbles, and 6 green marbles. What is the ratio of brown marbles to blue marble
Subtract the following complex numbers: (11-7)-(16-11) A. 5+ 4i OB. 5-18i O C. -5-18i OD. -5+4i
DONT delete my question or else!!! AM i a awful person??
Jocelyn complied data on the number of hours students work per week the summer after senior year. The minimum number of hours is the distribution was 23. The ra
im sad and depressed because i just got called to the library to get told i didnt mke the team for the battle of the books
DONT delete my question or else!!! AM i a awful person??
Convert the population of Texas to Scientific notation. There are 28,000,000 people living in Texas.
change -23/20 into a deciamal
Something times 3=-180