The ratio of boys to girls on a school trip was 5.7. There were 56girls. How many boys were on the trip

I will assume you meant 5 : 7

number of boys --- 5x
number of girls ---- 7x

given: 7x = 56
x = 8
number of boys = 5x = ....

5/7 = B/G.

5/7 = B/56,
7B = 280,
B = ?

To find the number of boys on the trip, we can start by determining the ratio of boys to girls.

The given ratio is 5.7, which means there are 5.7 boys for every girl.

Since we know there were 56 girls on the trip, we can set up the following equation:

Number of boys = Ratio × Number of girls

Number of boys = 5.7 × 56

To compute this, we simply multiply the ratio by the number of girls:

Number of boys = 319.2

Since the number of boys must be a whole number (as you can't have a fraction of a person), we can round the calculated value to the nearest whole number.

Therefore, there were approximately 319 boys on the school trip.