Given:
Principal = $1290
Rate of simple interest = 4%
Time = 9 months
To find:
The interest and total saving in the account altogether.
Solution:
The formula for simple interest is
...(i)
where, P is principal, r is rate of interest and t is time in years.
We know that,




Putting P=1290, r=4 and t=0.75 in (i), we get



So, the simple interest is $38.70.
Total savings is

Therefore, the total amount in the account altogether is $1328.70.
For this case we have the following expression:

We must find the value of the expression when:

Substituting the values in the expression we have:

Thus, the value of the expression is 2.
Answer:
The value of the expression is 2
Option A
Answer:
Kalida
Step-by-step explanation:
Kalida : 9 minutes / 3 laps = 3 minutes/ lap
Sonya : 7 minutes / 2 laps = 3.5 minutes/ lap
Answer:
C
Step-by-step explanation:
A: Perpendicular lines have 1 solution. A is not the answer.
B: If the lines intersect, there is one solution, not many.
C: The lines are the same or can be reduced to being the same. C is the answer.
D: The lines don't intersect means that the lines are parallel. There isn't a solution.
Answer A) x-11
Hope this helps!