Answer:

Step-by-step explanation:
Given



Required
Determine CD
Since Point C is on segment BD, then we have

Substitute x + 4 for BC; 5x for CD and 5x + 7 for BD

Collect Like Terms


Multiply both sides by -1

Substitute 3 for x in 


<em>Hence, the length of CD is 15 units</em>
<h2>
Hello!</h2>
The answer is: 4
<h2>
Why?</h2>
The smallest whole number we can use to multiply each term in order to eliminate the fractions is 4:
Multiplying each side of the equation by 4, we have:
Multiplying each side of the equation by 4, we have:

Have a nice day!
Answer:
2774
Step-by-step explanation:
start by multiplying 2 by 7, the answer is 14 put the 1 above the 8 in 1387 then put the 4 under the equation, similar to addition. repeat but next time when you multiply 2 by 8 add the 1 (from the previous multiplication) to the answer under and put the 1 from 17 on top of the 3. you get it?
The actual reduced ratio is 7:2
(-10, 0) and (-8,20)
y=mx+b
here m is slope and b is y intercept
firstly we have to find the value of m , that is slope
formula is

So 
Plug in the function\

Now plug any one point in the function to find the value of b


Add 100 to both sides
b=100