Hello,
Let's a the number that is substracted, b the other
a+b=10
a-b=-2
==>2a=8==>a=4 and b=10-4=6
Proof: 4-6=-1 and 4+9=10
The 2 numbers are 4 and 6.
What you can use for this case is a function of the potential type.
We have then
y = a (b) ^ x
Where we have:
Walker starts the fund by depositing $ 5
a = 5
Each week the balance of the fund is twice the balance of the previous week:
b = 2
The function is:
y = 5 (2) ^ x
The number of weeks to reach $ 1280 is 8 weeks.
Check:
y = 5 (2) ^ 8
y = 1280
Answer:
An equation can be used to find the number of weeks, x, after which the balance of the fund will reach $ 1,280 is:
y = 5 (2) ^ x
The number of weeks that it takes to reach the class goal is
8 weeks
Answer:
x + 2 = 3
Step-by-step explanation:
x is always = to 1
Yes it is because <span> that factors into (X - 4) x (X - 3)
you just divide the last number (12) into different things and see what will add together to get the middle number (-7)
-4 x -3 = 12 and -4 + -3 + -7
then you set the 2 factors = 0
X - 4 = 0 --> X = 4
X -3 = 0 --> X = 3
so 4 and 3 are the answers </span>