You have x , x+7, and 7x-7. When you add those up and equal it to 180 you can get your x. X equals 20
So one angle is 20 degrees
The second angle is 27 degrees
And the third angle is 133 degrees.
<span>4(x - 3) - 5(x + 1) = 3
4x - 12 - 5x - 5 = 3
-12 - 5 - 3 = 5x - 4x
x = -20
</span>
Solve for b.
b^2= x+4ac
So b=sq root of x+4ac
Answer:
1504
Step-by-step explanation:
47*2^25/5
47*2^5
47*32=1504
9514 1404 393
Answer:
(C) Step 1: 15x − 20 = 1; Step 2: 15x = 21
Step-by-step explanation:
The first step is to eliminate the parentheses, using the distributive property.
5(3x − 4) = 1
15x -20 = 1
The second step is to add 20 to both sides of the equation.
15x = 21
This pair of steps is shown in the 3rd choice.
_____
<em>Comment on the answers</em>
The distributive property seems to be applied incorrectly a lot of the time. Here, you can choose the correct answer by looking at the result of properly applying the distributive property: 5(3x-4) = 15x-20. Only the correct choice has this as the first step.
