Answer:
AD = 4.5
Step-by-step explanation:
Since the two bases of the two given triangles are parallel the triangles are similar.
Triangle BDE is similar to Triangle BAC
From this the following proportion can be set up.
BE / BC = BD/BA
BE = 8
BC = 8+12 = 20
BD = 3
BA = 3 + x where x = DA
8/20 = 3/(3+x) Cross Multiply
8(3 + x) = 3 * 20 Remove the brackets on the left. Combine Right
24 + 8x = 60 Subtract 24 from both sides
8x = 60 - 24 Combine the right
8x = 36 Divide by 8
x = 36/8
x = 4.5
But x = AD
Answer:
x= -10
Step-by-step explanation:
Subtract 8x from 4x ( -4x )
-4x-34=6
Add 34 to 6 ( 40 )
-4x=40
Divide by -4 ( -10 )
x= -10
Answer:
Tip = $10.52
Tax = $4.21
Total bill = $67.33
Step-by-step explanation:
We are given the following in the question:
Pre-tax bill = $52.60
Tip to waiter = 20% of the pre-tax amount
Tip to waiter =
Thus, $10.52 was given to waiter.
Tax on bill = 8% of the pre-tax amount
Tax =
Thus, tax on bill was $4.21.
Total bill =
Pre-tax amount + Tax + Tip
Thus, the total bill is $67.33
12/7 or 1 5/7
Simply multiply things
Mark brainliest please
Answer:
i think {x,y} = {-5,-2}
Step-by-step explanation: