Circumference = 2 * pi * radius
So, radius = circumference / (2 * pi)
Answer:
I know looks confusing
Step-by-step explanation:
f(1)=35f(n)=f(n−1)−2f(2)=f(1)−2=35−2=33f(3)=f(2)−2=33−2=31f(4)=f(3)−2=31−2=29f(5)=f(4)−2=29−2=27
Answer: 35, 33, 31, 29, 27.
Answer:
.4
Step-by-step explanation:
Use a caluculator
After 10 weeks, they will have same amount of money.
Step-by-step explanation:
Given,
Amount Andy have = $20
Amount earned per week = $5
Let,
x be the number of weeks.
y be the total cost.
y = 20+5x Eqn 1
Amount Jennifer have = $50
Amount earned per week = $2
y = 50+2x Eqn 2
For the same amount of money, the equations will be equal.
Eqn 1 = Eqn 2
Dividing both sides by 3
After 10 weeks, they will have same amount of money.
Keywords: linear equation, division
Learn more about linear equations at:
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9514 1404 393
Answer:
$2.50
Step-by-step explanation:
The question asks for the total cost of a notebook and pen together. We don't need to find their individual costs in order to answer the question.
Sometimes we get bored solving systems of equations in the usual ways. For this question, let's try this.
The first equation has one more notebook than pens. The second equation has 4 more notebooks than pens. If we subtract 4 times the first equation from the second, we should have equal numbers of notebooks and pens.
(8n +4p) -4(3n +2p) = (16.00) -4(6.50)
-4n -4p = -10.00 . . . . . . . . . . . simplify
n + p = -10.00/-4 = 2.50 . . . . divide by the coefficient of (n+p)
The total cost for one notebook and one pen is $2.50.
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<em>Additional comment</em>
The first equation has 1 more notebook than 2 (n+p) combinations, telling us that a notebook costs $6.50 -2(2.50) = $1.50. Then the pen is $2.50 -1.50 = $1.00.
One could solve for the costs of a notebook (n) and a pen (p) individually, then add them together to answer the question. We judge that to be more work.