Answer:
Add and subtract the remaining numbers in the math problem.
Answer:
1/25
Step-by-step explanation:
4/100 = 2/50 = 1/25
Answer:
- 42 mph
- 126 mph
Step-by-step explanation:
It takes 2 hours for the second train to catch the first, so the first must have had a head start of (2 h)(84 mi/h) = 168 miles.
The first train achieved that head start in 4 hours, so its speed was ...
(168 mi)/(4 h) = 42 mi/h
The second train was 84 mi/h faster so its speed was ...
42 mi/h + 84 mi/h = 126 mi/h
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The two trains met at a distance of 252 miles from Boston.
Answer:
D. x=15° is the correct answer, hope this helps.
Step-by-step explanation:
The measurement of the outer angle is the semi-difference of the arcs it encompasses.
see the attached figure to better understand the problem
∠x=(1/2)[arc AB-arc CD]
arc AB=40°
Remember that the diameter divide the circle into two equal parts
arc CD=180°-(130+40)°=10°
substitute
∠x=(1/2)[40°-10°]=15°
