Answer:

Step-by-step explanation:

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Answer: x=30
Step-by-step explanation:
The sum of the angles must be 360.
4x+3x+3x+2x = 12x
12x = 360
x =360/12 = 30
The correct answer should be 3.
Answer:
Rosa ran
of the total distance between her house and her school.
Step-by-step explanation:
Distance between Rosa's house and her school =
miles ≈ 4.5 miles
She ran distance = 3 miles
Therefore, fraction of the total distance between her house and school she run = 
= 
= 
= 
Therefore, Rosa ran
of the total distance between her house and her school.
Answer:140/x=300/(x+40)
300x=140x+40*140
160x=40*140
x=40*140/160=35 mph
ans:
slower speed = 35 mph
faster speed =x+40=75 mph
Step-by-step explanation: