
, so you insert the proportion and get 18. When the tank is three-fifths full, it contains 18 gallons of gas.
Answer:
720
Step-by-step explanation:
3x - 5 = g + x + 8
2x - 13 = g
Answer:
The answer to your question is x = 12
Step-by-step explanation:
Data
BC = 7
DE = x
AB = 7
BD = 5
Process
To solve this problem use proportions and cross multiplication. Compare the ΔADE and ΔABC.
DE / (AB + BD) = BC / AB
-Solve for DE
DE = BC (AB + BD) / AB
-Substitution
DE = 7(7 + 5) / 7
-Simplification
DE = 7(12) / 7
DE = 84/7
-Result
DE = 12
Answer:
60+80+X=180
Step-by-step explanation:
the angle forming 60° and that forming 80° in addition to the angle forming X makes a vertical straight line
the measure of all vertical staright lines=180°
then 60+80+X=180°
X=180-(60+80)
X=40°