The number of grams is 20 grams
Let x represent how many grams of a 15 percent alcohol solution
15%x+30%.40/x+40
=25%
0.15x+0.4.30=0.25 (x+40)
0.15x+12=0.25x+10
0.15x-0.25x=10+12
-0.1x=-2
x=-2/-0.1
x=20
Inconclusion The number of grams is 20 grams
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brainly.com/question/24750329
810+189-715= 284. the answer is 284
Answer:
A
Step-by-step explanation:
the number line has a -4 and adds the 1/2
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