The ratio of boys to girls at school today 4:7. If there are 350 boys at school today, how many girls are there? Round down

Divide the number of boys to the number on the ratio and find that first go from there

If we know the ration is 4:7, we know that both 4 an 7 need to be multiplied by the same exact number to equal 350. That leads us to set up the following equation:

4x + 7x = 350

We combine like terms to get:

11x = 350

We divide by 11 on both sides to get:

x = 31.82

7x represents the number of girl so:

7 * 31.82 = 222.72

Because the question says to round down, the answer is 222