Answer:
In ΔECB ,
∠ECD = ∠EBC + ∠BEC (∵ Exterior Angle Property of a triangle)
⇒ ∠BEC = ∠ECD - ∠EBC ................. eqn.1
In ΔABC ,
∠ACD = ∠BAC + ∠ABC (∵ Exterior Angle Property of a triangle )
⇒ 2∠ECD = ∠BAC + 2∠EBC
⇒ ∠BAC = 2∠ECD - 2∠EBC = 2(∠ECD - ∠EBC)
( Putting eqn.1 here )
⇒ ∠BAC = 2∠BEC (∵∠BEC = ∠ECD - ∠EBC)
Answer:
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Step-by-step explanation:
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Answer:
She will not have enough money. She is $2.15 short.
Step-by-step explanation:
Giving the following information:
The cost of the truck is 35 plus 0.79 per mile.
<u>First, we need to structure the total cost formula:</u>
Total cost= 35 + 0.79x
x= number of miles
<u>Now, we calculate the total cost for 85 miles:</u>
Total cost= 35 + 0.79*85
Total cost= $102.15
She will not have enough money. She is $2.15 short.
