Direct variation means their ratio is a constant
x/y is 9/45=1/5
so when x=2, y=5*2=10
Answer:
B. a square must have 4 right angles, but a rhombus may or not have 4 right angles.
Formula for the area of a circle is,
pi×radius squared
example,
radius of a circle is 2cm what's the area?use 3.14 as pi
2squared×pi
=2squared×3.14
=12.56cm squared..
hope this helps.....
Answer: 0.10(n)=25+0.05(n-200)
Explanation:
The number of business cards are n
Plan A: No initial fee and $0.10 for each business card
Plan B: $25 for the first 200 business cards
and surplus of $0.05 for each additional card
As n is total business cards
so from plan A equation is
0.10(n)
from plan B
25 + 0.05(n-200) if n > 200
Now as a whole the equation for no of business cards would be
0.10(n)=25+0.05(n-200)