A prepaid phone card has a balance of $22.40 remaining. If calls are $0.035 per minute, which equation represents the number of
1 answer:
You might be interested in
Well, if he walked one and three fourths miles five times, all you have to do is multiply one and three fourths and five to get your answer.
Addd 4 to both sides
sqare both sides
x+9=25
minus 9 both sides
x=16
plug it in for x and see
1=1
true
not extraneous
an extraneous root would be x=-34
sqare both sides
x+9=25
minus 9 both sides
x=16
plug it in for x and see
1=1
true
not extraneous
an extraneous root would be x=-34