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:
$190
Step-by-step explanation:
Put 280 where m is, and do the arithmetic.
C(280) = 0.5·280 +50 = 140 +50 = 190
The cost of Ann's rental is $190.
Answer:
808 over 25 as a faraction
Step-by-step explanation
a quarter of 65 is 16 4 over 25
16 4 over 25 times 2 808 over 25 as a fraction
Answer:
129
Step-by-step explanation:
144x0.90=129
Area = 1/2 * base * height
= 1/2 * 20 * 6
= 1/2 * 120
= 60 ft^2
