Answer:
Option C is correct.
Step-by-step explanation:
Let x be the distance cover by Michelle
Given:
A circle diameter is 3 miles.
And Michelle biked around the trail 4 times.
We know that
The circumference of a circle.
circumference = ----------(1)
where
miles
Put and r value in equation 1.
The circumference of a circle is 9.42 miles.
And Michelle biked 4 times, that is equal to 4 circumference.
.
That is equal to 38 miles.
Therefore, Michelle biked around 4 trail is 38 miles.
Answer:
In the account that paid 6% Susan invest
In the account that paid 5% Susan invest
Step-by-step explanation:
we know that
The simple interest formula is equal to
where
I is the Final Interest Value
P is the Principal amount of money to be invested
r is the rate of interest
t is Number of Time Periods
Part a) account that paid 6% simple interest per year
in this problem we have
substitute in the formula above
Part b) account that paid 5% simple interest per year
in this problem we have
substitute in the formula above
we know that
substitute and solve for x
therefore
In the account that paid 6% Susan invest
In the account that paid 5% Susan invest