mtotheb22 mtotheb22

20-01-2021
Mathematics

contestada

The ratio of boys to girls is 1:2.
Two boys and two girls enter the
room and the ratio is now 5:9.
How many boys and girls were
there originally?

Respuesta :

lros7348 lros7348

20-01-2021

Answer:let the original number of boys be x

x:2x=1:2

x+2:2x+2=5:9

9x+18=10x+10

x=8

2x=16

Step-by-step explanation:

Answer Link

Otras preguntas

Important features of modern and postmodern art include a. social satire and an eclectic approach to style. b. detachment from social influences. c. rejectio

Liz has a 24-inch long ribbon. She cuts nine 2-inch pieces from her original ribbon. How much of the original ribbon is left?

4C2 + 6C + 3C2 - 2C - 3

According to Benjamin Franklin and John Locke, what should a good government do? a. propagate scientific inquiry and experiments

What does states' rights refer to? a. the attempt to overthrow the federal government by the states b. the idea that each state has the right to allow or not al

What do carbon dioxide, light energy, water have in common

what is not a form of renewable energy

what is a 3 dimensional figure with 3 rectangular faces and 2 triangular faces please help me

let f(x) = 4x -5 and g(x) = 6x - 3. find f(x) - g(x).

what happens when alleles for a trait are codominant