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

How do color affect heat absorption

Which expressions are equal to a real number?

hiiiii i had question: why scottish people want independence ???

You have 40 years left until retirement and you want to retire with $3,350,000 saved. You plan to deposit 400 dollars into the account each month beginning one

1) Jack's and Mo's orchards had a harvest of 450 lb and 1,215lb of oranges respectively.Jack had 6 orange trees and Mo had 15 orange trees, whose orchard acquir

WORTH 30 POINTS SHOW ALL WORK What is y

Businesses can save a lot of energy by changing a few habits. (1) - many Japanese businesses turn off the lights for one hour per day, usually during lunch. Jap

Mark has a box of candy that has 12 bags of m & m’s . He paid $ 3.00 for the box . What is the unit rate ?

The midpoint of LineAB is M(3, 3). If the coordinates of A are (2, -1), what are the coordinates of B?

Find surface area Please show full working out