Use these graphs to solve the simultaneous equations 5x-9y = -46
y = -2x

(-2, 4)

Step-by-step explanation:

In the first equation substitute -2x for y, obtaining:  5x - 9(-2x) = -46

Then 5x + 18x = -46, or  23x = -46, resulting in x = -2

Since y = -2x, y = -2(-2) = 4

The solution is (-2, 4)

175

step-by-step explanation:

2 inches x 10 miles = 200 miles - 3 inches = 175