Answer: So you have 195 campers, and suppose that the ratio of 8:7 is the ratio of boys to girls. This number means that there are 8 boys for each 7 girls.
if we multiply 7 and 8 for the same number x of pairs, and think that the sum of all boys and girls must be equal to 195, we get that
The x-intercepts are the values of x for which f(x) = 0. x^2 + 4 = 0 x^2 = -4 x= ±√(-4), which are not real numbers. f(x) does not have an x-intercept.