Answer:
8:30 PM
Step-by-step explanation:
Let's say that x is minutes since 6:20 PM, and y is position in miles.
Since Jonathan drives at a constant rate, the position vs time graph is linear. Two points on the line are (0, 75) and (20, 85). The slope of the line is:
m = Δy / Δx
m = (85 − 75) / (20 − 0)
m = ½
So the equation of the line is:
y = ½ x + 75
We want to find x when y is 140.
140 = ½ x + 75
65 = ½ x
x = 130
So 130 minutes after 6:20 PM is when Jonathan's position will be 140 miles. 130 minutes is 2 hours and 10 minutes. So the time will be 8:30 PM.
Answer:
x < -16
Step-by-step explanation:
-6-x>10
adding 6 in both sides:
-6-x+6 > 10+6
-x > 16
If you want to remove the negative sign from x, you'll have to change the inequality sign.
x < - 16
Hope this helps.
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x=1.4
y=-3.6
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:)
Answer:
a^2+a-6
Step-by-step explanation:
i have attached your answer
area of a triangle = 1/2 base x height
56.4 = 1/2 x 12 x height
56.4 = 6 x height
height = 56.4 /6 = 9.4cm
