Can you show me the drop down choices?
If angle 5 is 78 degrees then angle 2 is 102
Step-by-step explanation:
2x-4x=1
-2x=1
x=-1/2
<em>hope</em><em> </em><em>it</em><em> </em><em>helps</em><em> </em><em>you</em>
Let the necessary amount of water be x. Then (1.00)(1 gallon antifreeze) = 0.40(x+1 gallon), or 1 = .40x + .40. Combining like terms: 0.60 = 0.40x.
Then x = 0.60 / 0.40 = 1.5.
Adding 1.5 gallons of water to that 1 gallon of pure antifreeze results in 2.5 gallons of 40% antifreeze.
