Answer: x=5 and 1/2
Step-by-step explanation:
You have to go to a graph and put it simply it, makes it a lot easier, hope this helps!
2y-2>-4+2. Add 2 to both sides. Now you have 2y>-2+2. Erm. I might be wrong since I JUST learned this unit and I made some mistakes. Ok soo, add 2 to both sides again. Now you have 2y+2>2. Subtract 2 from both sides. You now have 2y>0. You have no solution since 2 can't be divided by 0. I'm probably wrong but I hope I helped...ish.
Answer: 35%
Step-by-step explanation:
- To start off divide 100% by the 20$ it began with, it should give you 5%
100/20 = 5
this means that every dollar is worth 5%
- now leaving that aside, subtract 20$ by 13$, it should give you 7$
2--13 = 7
the reason you do this is because since we're looking for the amount reducted, you have to subtract from the beginning amount.
- Finally, with the knowledge gathered, you multiply 5% by the 7$ that were deducted, it should give you 35%
7(5) = 35
The reason we did this is because every dollar is worth 5% and there were 7$ deducted, it results in 35% reduced.
Answer:
10 inches
Step-by-step explanation:
w = 1/5 P
Multiply each side by 5
5w = 1/5P *5
5w =P
We know the perimeter of a rectangle
P = 2(l+w)
We can set the two equations equal
5w = 2 (l+w)
l =15 inches
We can substitute 15 in for the length
5w = 2(15+w)
Distribute
5w = 30 +2w
Subtract 2w from each side
5w -2w = 30+2w-2w
3w =30
Divide each side by 3
3w/3 = 30/3
w =10
The width is 10 inches