Here is the equation: x+(x+20) = 120
Since you can't combine anything yet, its x+x+20=120
You need to get x by itself
Minus 20 from both sides
Its x+x=100 now
Combine the x's which is now 2x
Now divide 100 by 2 which is 50
x=50
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Lets check:
50+(50+20)=120
Now combine the numbers in the parentheses
Its now 50+70=120
50+70=120 and 70-50=20
As you can see, he ran 50 minutes the first day and 70 minutes the second day
Answer:
Option D: 
Step-by-step explanation:
we know that
The volume of Saturn is about 
The volume of Earth is about 
Dividing Saturn's volume by Earth's volume

Answer:
Refer to attached
Step-by-step explanation:
Points plotted and connected
You need two // sides. Thus this figure doesnt show that
Hello!
I dont a graph to show you but I will solve the answer.
12.7 + 5.3 <span>≥ s
18 </span><span>≥ s
s </span><span>≤ 18
</span><span>That is your answer.
Enjoy.
~Isabella
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