Y= 13.5
13.5 = 1.8c
13.5/1.8 = 1.8c/1.8
c = 7.5
not sure if this is correct
Answer:
y = 5
Step-by-step explanation:
The 3 interior angles of a triangle sum to 180°
Sum the 3 given angles and equate to 180
100 + 4y + 25 + 3y + 20 = 180 ← simplify left side
7y + 145 = 180 ( subtract 145 from both sides )
7y = 35 ( divide both sides by 7 )
y = 5
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Then it contains 38 doses becasue 76 divide 2 is 38
