Answer:
y = 3x - 13
Step-by-step explanation:
y = -1/3x + 5
Perpendicular lines have slopes that are negative reciprocals of one another
so slope of perpendicular line is 3
y = mx + b
y = 3x + b
Using (1,-10)
-10 = 3(1) + b
-10 = 3 + b
b = -13
y = 3x - 13
Answer:

Step-by-step explanation:
we know that
The rate is equal to

Remember that

substitute

.45 is 45/100 (simplify) 9/20
1/2 is already simplest form of fraction.
Helen subtracted 17 from the right side of the equation when she should have added 17. Adding 17 to both sides would have gotten x/y by itself.
The answer is 'Helen should have added 17 to both sides of the equation'.