Answer:he started with 35 posters
Step-by-step explanation:
Let x represent the number of posters that he started with.
Stefan bought 5 posters to add to his collection. This means that the number of posters at this point is
x+ 5
A week later half of all his posters were lost during a move. This means that the amount of posters that were lost is (x+5)/2
The amount of posters left would be x - (x+5)/2
There are now only 15 posters left. This means that
x - (x+5)/2 = 15
Multiplying through by 2
2x - x - 5 = 30
2x - x = 30 + 5
x = 35
Answer:
7
Step-by-step explanation:
Which one do you need help on
Answer: 50/110 simplified is 5/11
Step-by-step explanation:
50/110
50/10=5
110/10=11
5/110=5/11
Answer:
The equation is y = 1. Therefore, the slope is undefined.