A=-8
Subtract 8 from both sides and you'll get -6=3/4a
Multiply 4/3 with both sides to get 4/3(-6)=a
Then -24/3 = -8
Step-by-step explanation:
Let t = time (in hrs) Linda rode her bike
Then (t-3) = Shana's time walking
:
Write a distance equation: dist = speed * time
:
Linda's dist + Shana's dist = 164
20t + 6(t-3) = 164
20t + 6t - 18 = 164
26t = 164 + 18
26t = 182
t = 182/26
t = 7 hrs, Linda is on the road
:
Time: 9 AM + 7 hrs = 4 PM, they will be 162 miles apart
:
Check using Linda's and Shana's distances:
20(7) + 6(7-3) =
140 + 24 = 164 mi
Answer:
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Step-by-step explanation:
Answer:
-2 2
3 0
-1 -5
Step-by-step explanation:
-2 + 0 = -2 -5 + 7 = 2
1 + 2 = 3 0 + 0 = 0
3 + (-4) = -1 - 4 + (-1) = -5