His total would be $5.50
5.50+0.75+1.25= 7.50
7.50-2(the coupon) = $5.50 total
Average speed of cyclist = x
average speed of car = 3x
x = 225/5
x = 45km/h
3x = 3(45)
3x = 135km/h
average speed of cyclist = 45km/h
average speed of car = 135km/h
Isolate the variable by dividing each side by factors that don't contain the variable.
Inequality Form:
X< -10/3
Interval Notation:
(-∞, - 10/3)
Hope this is right :)
Answer:
if union, U means plus,+
if intersect means minus, -