Answer:
x = 34
Step-by-step explanation:
This is a straight line so the sum of angles must be 180°
4x + 20 + x - 10 = 180 add like terms
5x + 10 = 180 subtract 10 from both sides
5x = 170 divide both sides by 5
x = 34
To calculate each angle we replace x with the value we found
4x + 20 ➡ 4×34 + 20 = 156
x - 10 ➡ 34 - 10 = 24
Answer:
2.10x+5=49
Step-by-step explanation:
2.10x represents how much she is paying per mile
The five represents the tip she gave the driver
49 represents the total amount she paid
With this information, you can create this equation to solve for the amount of miles.
Hope this helps!
Answer:
Step-by-step explanation:
Given the original coordinate as C (-6, 9) and new coordinates after dilation as C' (-2, 3), we can see that the value of the new coordinates has reduces by a factor. Let the factor be k
For the x coordinates:
C' = kC
x' = kx
-2 = k(-6)
-2 = -6k
Divide both sides by -6
k = -2/-6
k = 1/3
For the y-coordinates:
y' = ky
3 = 9k
Divide both sides by 9:
3/9 = 9k/9
1/3 = k
k = 1/3
Hence the scale factor of the dilation is 1/3
A^2+b^2=c^2
a^2+9^2=15^2
a^2+81=225
-81 -81
a^2= 144 (square root both sides)
a=12
Answer:
Step-by-step explanation:
3000 W = 3 kW
3 kW(4hr/day)(30 day/month) = 360 kWh/month
360 kWh/month($0.15 / kWh) = $54
So about $75 when you add all the taxes and other fees that get added to a typical electric bill.
