Answer:
$30
Step-by-step explanation:
He first has 10 dollars. Then 5 is taken off.
So, 10-5=5
His friend gives him 25 more dollars
So, 25+5= 30
Hope this helped!
Answer:
2kx+4y=20 ⇒ kx+2y=10
3x+6y=30 ⇒ x+2y= 10
k is the coefficient of x, so it is the slope of the line
- when k=1, both equations will be same, then there are many solutions
- when k=0 there is one solution
- when k is anything different, then the lines will be parallel, so no solutions
I’m pretty sure the answer is -1