System of equations - urgent please help ben is making a new Twitter account and has 72 followers on his first day. He averages 10 new followers each week after that. Sarah also started a Twitter account and has 100 followers on her first day and averages 3 new followers each week. After how many weeks will they have the same number of followers?
Answers
Answer:
4 weeks
Step-by-step explanation:
Step one:
ben has 72 followers on his first day.
He averages 10 new followers each week
let the number of weeks be x
and the total followers be y
y= 72+10x--------1
Sarah also started a Twitter account and
has 100 followers on her first day and averages
3 new followers each week
let the number of weeks be x
and the total followers be y
y= 100+3x--------2
Step two:
let us equate the two expression to get the number of weeks x
72+10x=100+3x
collect like terms
10x-3x=100-72
7x=28
divide both sides by 7
x=28/7
x= 4 weeks
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Answer:
Dalton didn't ride any kilometer farther since he keeps threading in the same path as that of his father.
Step-by-step explanation:
If Dalton's dad rode 1 kilometer north, 2 kilometers west 1 kilometer south and 2 kilometers east, then he has been moving in a rectangular path.
If Dalton rode in the same path 5times, then Dalton's has not move farther than his dad since he is still moving in the same rectangular path. He is only expending more energy.
Their final destination will still be the same for both of them no matter how many times Dalton keeps threading in the same path.
Answer:
Step-by-step explanation
Answers
the line is y = -3
Answers
Answer:
f(x) = 3(x+2)(x-2)
Step-by-step explanation:
We are given the following the quadratic function and we are to rewrite it in intercept or factored form:
We can factorize the given function so taking the common factors out of it to get:
The term is in the form
so it can further be factorized to give:
Therefore, the factored form of the given quadratic function is f(x) = 3(x+2)(x-2).
Answer:
3(x-2)(x+2)
Step-by-step explanation:
Given equation is :
f(x) = 3x²-12
We have to rewrite the given function in factored or intercept form.
Since, we know that 3 and 12 are multiples of 3.
taking 3 as common , we get
f(x) = 3(x²-4)
using differernce formula in above equation , we get
a²-b² = (a-b)(a+b)
f(x) = 3(x-2)(x+2)
Hence, the given factors are 3,(x-2) and (x+2).
Answers
Answer:
Did not change.
Step-by-step explanation:
This is because the average is based off the total sum of all the constituents. Thus adding 10 and subtracting 10 doesn't change anything.
Answers
Answer:
u can look up the title and the entire answer key will come up