Answer:
18 weeks
Step-by-step explanation:
Let the number of weeks be represented by a variable x;
Beginning balance = 450
Ending balance= 180
Amount spent per week= 15
Amount spent in x weeks = 450-180= $270
Total amount spent in x weeks = 15*x = 15x
Equate the above equations to the corresponding dollar amount;
15x=270
Next, solve for x by dividing both sides by 15
x=270/15
x= 18
Therefore, there are 18 weeks in the semester.
Answer:Yes
Step-by-step explanation:
Answer:
75% of the original paper’s size.
Step-by-step explanation:
Let’s say that the original size was 10 inches.
You then increase it by 50%. It is now 15 inches.
Now, you decrease it by 50%. 50% of 15 is 7.5. So, the paper is now 7.5 inches.
7.5 inches is 75% of the original paper size.
I hope I helped!
Let me know if you need anything else!
~ Zoe
