Answer:
Step-by-step explanation:
Let
- y- the amount of charge,
- x - the number of miles
The equations as per question are below
<u>Crazy Curly's</u>
<u>Bill's Beauties</u>
Solve the system by substitution
- 0.3x + 20 = 0.2x + 50
- 0.3x - 0.2x = 50 - 20
- 0.1x = 30
- x = 30/0.1
- x = 300
Answer:
x=16
Step-by-step explanation:
From the Free Response Row,
For the Total Time(in minutes) column
Since x=55-3m and x=8(15-m)
Therefore:
55-3m =8(15-m)
55-3m=120-8m
Collect like terms
-3m+8m=120-55
5m=65
Divide both sides by 5
m=13
Therefore:
x=55-3m=55-3(13)=55-39
x=16
Answer: 47.5 ft^2
Step-by-step explanation: First find the area of the rectangle using the formula length*height. This is 10*4 or 40.
Then find the area of the bottom triangle using the formula (base*height)/2. This will be (3*3)/2, which simplifies to 9/2, which is 4.5.
Then find the area of the top triangle using the same formula, which will be (2*3)/2, which simplifies to 6/2, which is 3.
Add all of these together. 40+3+4.5=47.5.
The measure of angle y is 163 degrees because the two angles are vertical angles
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