there are 3/7 as many girls as ther are boys in a field. thereare 64 more boys than girls in how many children are in the field.

160 children, 112 boys and 48 girls.

Step-by-step explanation:

You can translate this into two equations:

g = 3/7 * b

g+64 = b

Then fill in one in the other and simplify:

3/7 b + 64 = b = >

4/7 b = 64

b = 64 * 7/4 = 112

g = 112 * 3/7 = 48