Answer:
r=20%
Step-by-step explanation:
we know that
The simple interest formula is equal to
where
A is the Final Investment Value
P is the Principal amount of money to be invested
r is the rate of interest
t is Number of Time Periods
in this problem we have
substitute in the formula above
solve for r

Answer:
the answer is (a+2)(a²+5)
thank you
.3 is that rounded to the nearest tenth
Answer:
12 hours
Step-by-step explanation:
We can set up an equation to model the situation:
y = 9x + 50
Now, we can plug in 158 as y and then solve for x:
158 = 9x + 50
108 = 9x
12 = x
Step-by-step explanation:
First we will take the time needed to make one chair by unitary method
then just multiply by how many chairs you want to calculate