Y=mx+b
y=2x+b
then substitute x and y
3=2(3) + b
3= 6 + b
b=-3
y=2x-3
We can use the interest formula:
Let i = interest.
Let p = principal
Let r = interest rate
Let t = time.
I = p × r × t. Plug in our numbers
6.5% = 0.065
I = $4,000 × 0.065 × 3 = $780.
He will pay $780 in interest after 3 years.
Answer:
you did not add a picture or any other over fractions.
Step-by-step explanation:
3x+20=5x+12
-3x -3x
20= 2x +12
-12 -12
8=2x
Divide both sides by two
4=x
It will take four days (this is how to solve algebraically)
86 years old because you subtract 2017-1931
