SOLUTION: In a ship of 30 people the sailors are 2/3 of the soldiers Find out the number of soldiers??

Question 1111127: In a ship of 30 people the sailors are 2/3 of the soldiers
Find out the number of soldiers??
Answer by Theo(13342) (Show Source): You can put this solution on YOUR website!
a = number of sailors.
b = number of soldiers.

a + b = 30

sailors are 2/3 of the soldiers.

a = 2/3 * b

replace a with 2/3 * b in a + b = 30 to get:

2/3 * b + b = 30

combine like terms to get 5/3 * b = 30

multiply both sides of the equation by 3/5 to get b = 3/5 * 30

this results in b = 18.

there are 18 soldiers.

there are 2/3 * 18 = 12 sailors.

total sailors plus soldiers is 30.

your solution is 18 soldiers.

RELATED QUESTIONS
In a ship of 30 people, the sailors are 2/3 of the soldiers. find the number of the... (answered by josgarithmetic)

In a ship of 30 people, the sailors are 2/3 of the soldiers. find the number of the... (answered by josgarithmetic,greenestamps)

How many soldiers are there in a group of 27 sailors and soldiers if there are four... (answered by ewatrrr)

How many soldiers are there in a group of 27 sailors and soldiers if there are four... (answered by josmiceli)

The heights of six randomly chosen sailors has a mean of 69 inches and SD 3.5 inches,... (answered by ikleyn)

A battalion of soldiers wanted to have a parade forming a square design with 1536... (answered by Edwin McCravy)

There are s soldiers in a row. How many will there be in 20 rows ?? If each row is... (answered by ikleyn)

when a regiment is arranged in a perfect square,the number of soldiers in the front row... (answered by Edwin McCravy)

324 soldiers queued up such that the number of queues is equal to the number soldiers in (answered by Fombitz)