Put (9/10) ÷ (-6/5) into a calculator and you get -. 75 (aka - 1/4)
Rate in walk = 2 miles/hr
Distance by walk = x
Rate in jog = 4 miles/hr
Distance by jog = y
Total distance = 3.4
Total time = 1.2 hours
x + y = 3.4
x/2 + y/4 = 1.2
if we multiply by 4
2x + y = 4.8
Subtract both equations
x = 1.4 miles
y = 2 miles
walking time = 1.4/2
= 0.7 hour
walking distance = 1.4 miles
jogging time = 2/4
= 0.5 hour
jogging distance = 2 miles
Answer: $ 36.80
Step-by-step explanation:
Answer:
2x+x+x+20=180
Step-by-step explanation:
Triangle Sum Theorem
first angle:x
Second: 2x
Third:x+20