MATH
posted by SAM .
Terry has completed 15 homework problems, and Susan has completed 9. Terry is completing 10 problems per hour, and Susan is completing 12 per hour. After how many hours will Terry and Susan have completed the same number of problems?
a. 3 hrs**** b. 4 hrs c. 5 hrs d 10 hrs

MATH 
Ms. Sue
10, 20, 30, 40, 50, 60, 70, 80
12, 24, 36, 48, 60, 70 
MATH 
Ms. Sue
Three hours isn't right.
How many hours will it take for each of them to finish 60 problems? 
MATH 
Bor
It's 4 hours, it's not difficult.

MATH 
Bor
Ms Sue, you had it wrong though haha.
It's:
15 9
25 21
35 33
45 45
55
65
75
85
Respond to this Question
Similar Questions

english
How might you explain to a new student of English what is happening in such sentences as these? 
economics
) The demand curve for haircuts at Terry barnyards Hair Design is P=200.20Q Where Q is the number of cuts per week and P is the price of a haircut. Terry is considered raising her price above the current price of $15. Terry is unwilling … 
managerial
The demand curve for haircuts at Terry Bernard's Hair Design is P=200.20Q where Q is the number of cuts per week and P is the price of a haircut. Terry is condering raising her price above the current price of $15. Terry is unwilling … 
math
Mike completed 19 math problems before dinner for tonight’s homework, and he completed x problems after dinner. Write an expression to determine the total number of problems he completed. 
ECON
The demand curve for haircuts at Terry’s Hair Design is P=200.20Q Where Q is the number of cuts per week and P is the price of a haircut. Terry is considering raising her price above the current price of $15.00. Terry is unwilling … 
Algebra 1
Terry has completed 15 homework problems, and Susan has competed 9. Terry is completing 10 problems per hour and Susan is competing 12 problems per hour. After how many hours will terry and susan have completed the same number of problems … 
Math
Terry earned 4.2 times as much per hour as Roy Terry's salary is what percent of Roy's 
algebra
terry earns $6.50 per hour babysitting. a. write a rule to describe how the amount of money m earned is a function of the number of hours h spent babysitting. b. how much money does terry earn if she babysits for 4 hours and 15 minutes? 
Algebra
terry earns $6.50 per hour babysitting. a. write a rule to describe how the amount of money m earned is a function of the number of hours h spent babysitting. b. how much money does terry earn if she babysits for 4 hours and 15 minutes? 
Algebra
terry earns $6.50 per hour babysitting. a. write a rule to describe how the amount of money m earned is a function of the number of hours h spent babysitting. b. how much money does terry earn if she babysits for 4 hours and 15 minutes?