We have similar triangles allowing us to form the proportion
x/(x+9) = 4/10
which is basically the ratios of the corresponding sides
Solve for x
x/(x+9) = 4/10
x*10 = 4*(x+9)
10x = 4x+36
10x-4x = 4x+36-4x
6x = 36
6x/6 = 36/6
x = 6
Answer: 6
In both of the problems, x equals 0 and y equals 1
Answer:
w=-2
Step-by-step explanation:
9(w-4)-7w=5(3w-2)
9w-36-7w=15w-10
9w-7w-15w=-10+36
-13w=26
w=-2
Answer:
Option 3
Step-by-step explanation:
We need to find a pair which shows equivalent expressions.
First equation is
Option 1 is incorrect.
Second equation is
Option 2 is incorrect.
Third equation is
Option 3 is correct.
Fourth equation is
Option 4 is incorrect.
Therefore, the correct option is 3.
Answer:
x = -8
Step-by-step explanation:
Let's put this into numbers: x =-6
The first thing you want to do is to multiply both sides by 4:
3x=-24
Next you need to divide by 3:
x=-8
The answer is -8