the ratio of the number of adults to children at a conce6is 5:6. the ratio of number of boys to number of girls is 2:5. therenare 36 more girls than boys at the concert. how many bpy are at the concert
number of boys --- x
number of girls --- x+36
x/(x+36) = 2/5
5x = 2x + 72
3x = 72
x = 24
so we have 24 boys and 60 girls for a total of 84
adults/children = 5/6
adults/84 = 5/6
6adults = 420
adults = 70
All is known
the ratio of the number of adults to children at a conce6is 5:6. the ratio of number of boys to number of girls is 2:5. therenare 36 more girls than boys at the concert. how many adults are there at the concert
if the area of the trainingle is 112cm2, what is the height, h, of the training
To determine the number of boys at the concert, we can start by setting up two equations based on the information given:
1. The ratio of the number of adults to children is 5:6. This means that for every 5 adults, there are 6 children. Let's represent the number of adults as "5x" and the number of children as "6x".
2. The ratio of the number of boys to girls is 2:5. This means that for every 2 boys, there are 5 girls. Let's represent the number of boys as "2y" and the number of girls as "5y".
Now, we are told that there are 36 more girls than boys at the concert. So, we can set up the following equation:
5y - 2y = 36
Simplifying the equation, we have:
3y = 36
Dividing both sides of the equation by 3, we find:
y = 12
Now that we know the value of "y", we can substitute it back into the equation for the number of boys:
2y = 2 * 12 = 24
Therefore, there are 24 boys at the concert.