Step-by-step explanation:
3x+2y=2------------1
-3x+5y=5-----------2
adding 1 and 2 we get
7y=7
y=1
and from (1),we get
3x+2×1=2
3x=0
x=0 is the required value of x.
The GCF is 5x because 5x goes into all the sets.
Answer
22
Step-by-step explanation:
82-2=80-60=20+2=22
Answer:
a) 
b) $12,000
Step-by-step explanation:
We are given the following information in the question:
The cost C of moving rubble is proportional to the product of the mass M of the rubble and the distance D the rubble must be moved.
This can be written as:
a)


b) It costs 50 dollars to move 1 ton of rubble 1 mile

We have to find cost to move 16 tons 15 miles.
Putting the values in the function:

Thus, $12,00 is the cost to move 16 tons 15 miles.