X = 4
Explanation:
sqrt(x) + sqrt(5 + x) = 15 / sqrt(5 + x)
sqrt(5 + x)[sqrt(x) + sqrt(5 + x)] = 15
sqrt(5x + x^2) + 5 + x = 15
sqrt(5x + x^2) = 10 - x
Take square of both sides
5x + x^2 = (10 - x)^2
5x + x^2 = 100 - 20x + x^2
Cancel x^2
5x = 100 - 20x
25x = 100
x = 4
Answer:
2x-y=8
Step-by-step explanation:
Equation of a line y-y1 =m(x-x1)
Given m=2, x1=7, y1=6
y-6 = 2(x-7)
y-6 = 2x-14
2x-y = 8

Substitute the values. 
Follow PEMDAS and multiply and divide first. 

Continue following PEMDAS and subtract. 
2/3 * 85/1 = 170/3
170/3 = 56 2/3
Your answer is 56 2/3
She caught 3 times s much