bogdanmamaia123 bogdanmamaia123

15-03-2020
Mathematics

contestada

intr-o clasa snt 35 de elevi .nr fete este egal cu 75 la suta din nr baietilor .aflati nr baietilor

Respuesta :

aledan15 aledan15

15-03-2020

Salut!

b=baiat

f=fata

In clasa sunt 35 elevi.

75/100 x b=f

3b/4=f

3b=4f

b+f=35

3b+3f=105

7f=105

f=15

b=35-15

b=20

Succes!

Answer Link

Otras preguntas

Which one of the following choices best represents an advantage of cardiorespiratory fitness?

what is the value of x in the following proportion? 7/x-5 = 15/x+4

suzy had 10L of water. She wanted to pour an equal amount of water into 5 thermoses. How many liters did she pour into each thermos?

If transpiration stopped completely, how would a plant's homeostasis first be affected?

Use the substitution method to solve the system of equations. Choose the correct ordered pair.x + y = 5 y = 7

What is the area of the figure?

What was the primary subject of the 1990s treaty between the U.S., Canada, and Mexico?

Can the sum of two mixed numbers be equal to 2?Explain why or why not.

The production of small consumer goods is referred to as?

when you go to sleep does your whole body shut down?