A girl starts to walk to her school, which is 20 miles away, at 6:50 and at a rate of 3 miles per hour. After a while, her dad p
icks her up and drives her through the remainder of the way at 30 miles per hour. If they arrived at school at 9:00, how far did she walk?
2 answers:
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The answer would be x equals 7
9 = x
subtract 3x from both sides of the equation and you're left with 9=x
Answer:
x=1
Step-by-step explanation:
1-2x=-3x+2
-1=-x
1=x
Answer:
an =a1+(n−1)d
Step-by-step explanation:
