Hi!
The answer is C. It is a numerical expression because it contains only numbers and operation symbols.
Answer:
1. 18
2. -8
3. 1
4. 84
Step-by-step explanation:
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We know that:
time=distance/speed
if the tortoise speed is x m/min, then since 0.5 m/hr=1/120 m/min
18/x=23+18/(x+1/120)
solving for x we get:
x=0.08 m/min
speed of hare is:
(0.08+1/120)=0.088 m/min
"x" always goes on the left side and "y" always goes on the right side of the parentheses. If you only have an "x" then you will just put a zero in for "y" and vice versa. I hope this helps.
Answer:
Depends on how far or fast she's running per second or per minute
