$6.90 divided by 3 is $2.30 which is the unit rate and if you multiply $2.30 by 10 you get $23
Answer:
~64 meters
Step-by-step explanation:
depending on how you go at this, you can get a variant of what i have, but it should not go over 70 meters. nor under 60 meters.
Answer:
Ms. Rice need to purchase 9 lengths of edging.
Step-by-step explanation:
Length of edging Ms. Rice need to replace = 166.25 ft
Length of edging lengths sold = 19 ft
Total number of lengths of edging Ms. Rice needs to purchase =
Since she would purchase whole lengths so it would rounded to 9 in number.
∴ Ms. Rice need to purchase 9 lengths of edging.
Given that the quantity demanded for a certain brand of portable CD players is 200 units when the unit price is set at $90.
If we set quantity=y and price=x then in point form, we can write above information as (90,200)
Similarly "The quantity demanded for 1,200 units when the unit price is set at $40. " can be written as (40,1200)
Now we can plug both points into two point formula to find the required equation:

plug those points



y-1200=-20(x-40)
y-1200=-20x+800
y=-20x+2000
Hence demand equation is y=-20x+2000