Answer:
6,000 meters
Step-by-step explanation:
Length of one lap d = 400 m
Lee's speed = u = 7.2 km/h. Shelby's speed v = 9 km/h
After time t, Shelby will run x meters to cover exactly 3 more laps than Lee.
So x = vt
and
x - 3d = ut
Note t = x/v, then
x - 3d = x*u/v
x (1 - u/v) = 3d
x = 3d/(1 - u/v) = 3*400/(1 - 7.2/9) = 6,000 meters
Hi there!
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I believe your answer is:
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Here’s why:
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![\boxed{\text{Simplifying the Expression:}}\\\\4x - 9 + 23x\\----------\\\rightarrow 4x + 23x - 9\\\\\rightarrow \boxed{27x-9}](https://tex.z-dn.net/?f=%5Cboxed%7B%5Ctext%7BSimplifying%20the%20Expression%3A%7D%7D%5C%5C%5C%5C4x%20-%209%20%2B%2023x%5C%5C----------%5C%5C%5Crightarrow%204x%20%2B%2023x%20-%209%5C%5C%5C%5C%5Crightarrow%20%5Cboxed%7B27x-9%7D)
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Hope this helps you. I apologize if it’s incorrect.
128 Bales of hay
Step-by-step explanation:
Take 64 and multiply it by 2 since 4 is half of 8 and 2 is double which make 64 so the answer is 128
X 2
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128
Answer:
[-7, infinity)
Step-by-step explanation:
solid dot on -7 so [
arrow is to positive infinity
infinity always use )