Answer:
n=10
Step-by-step explanation:
P = 2n
P -5 = 1.5n, substitute P
2n -5 = 1.5n, subtract 1.5n and add 5 to both sides
2n -1.5n = 5, combine like terms
.5n = 5, divide both sides by .5
n= 10
You can choose from the first letter 7 ways. For each of those 7 ways to choose the first letter, you can chose the second letter also. As well as the 3rd, 4th, 5th, 6th, and 7th. So you would multiply or use powers (7x7x7). Which would give you the answer of 343. There is 343 ways that "algebra" can be arranged.
(I'm in the 7th grade)
Answer:
You have not mentioned the joining points so I have joined the points WZ and XY and plotted in the graph. It seems that the lines WZ and XY are perpendicular.
30-30-15+10 Henry starts with 30, loses 10, and then another 15. Than his sister gives him 10.
Answer:
3/2
Step-by-step explanation:
16+12= 28 total shapes
squares =12 so 12/28
and divide both side by 4 for simplest form
3/2