liamBedford liamBedford

26-04-2016
Mathematics

contestada

There are 120 children there are twice as many boys than girls how many girls are there?

Respuesta :

26-04-2016

Boys are b
Girls are g

b + g = 120
2g = b

Substitute the second equation into the first

2g + g = 120
3g = 120
g = 40

Plug in g = 40 and solve for b

b + g = 40
b + 40 = 120
b = 80

There are 40 girls and 80 boys.

Answer Link

Otras preguntas

plz help me plz help me plz help me I don't want to get grounded the whole summer. the question is the area of the kite is 24 ft squared what is the value of y

Select the correct answer. What do diagnostic services provide? ОА a "picture" of patient health at a point in time OB. ongoing care for chronic conditions, suc

Qué debes hacer para estar sano? Para estar sano, come cada día una manzana. Para estar sano, come cada día una receta. Para estar sano, come cada día una diabe

Rinderpest (a virus) has high mortality in wildebeest (a kind of herbivore), especially in young animals. From the early 1960s, after the elimination of a virus

The weight of water is 0.036 pounds times the volume of water in cubic inches. How many pounds of water would fit into a fish tank shaped like a rectangular pri

CAN SOMEONE PLEASE HELP PLEASE PLEASE

Deborah bought 3 identical bindersand received $1.15 change from $10.00. Use algebra to find out how much each binder cost. Show your work.

What two ways might you be able to ship these mining resources?

123456762123456787654321`4567898 x 1whats the answer

What is 5/8 closets to