I think it's D bc I looked it up in internet and it's what It gave me
The process used in the picture is cross multiplying. Make an x through the numbers and multiply them by each other. That's why 21 was multiplied by 14 and 49 was multiplied by n. The value of n is unknown, so it simplifies to 49n, and 14*21=21.4. So basically to recap, make an x, multiply the terms that are diagonal from each other, write both of the answers next to each other, and put an = sign in between them. If you don't understand I can try to explain differently ☺
The first thing we must do for this case is to define the variables:
x = the amount earned
y = the money saved
The equation of the line that adapts to this problem is given by:
y = (1/5) x
Let's check:
For x = 20 $ we have:
y = (1/5) (20)
y = 4 $
Answer:
The slope of Mike's graphed line will be:
B) 1/5
