I'm not sure if your asking how many total buttons there are in the jar or how many there were after she put 40 in so i'll answer both.
Total amount in groups of ten: 17 groups
Total amount Robin put in in groups of ten: 4 groups
I hope that makes sense.
Answer:
x=
5
/4
Step-by-step explanation:
16x-16=4
add 16 to both sides
16x-16+16=4+16
16x=20
Divide by 16 to both sides
16x/16=20/16
x=5/4~~ 1.25 decimal
Answer:
-3
Step-by-step explanation:
the coefficient of the x term is the slope in any equation that is in slope intercept form