Solve the problem.A college student earned $6900 during summer vacation working as a waiter in a popular restaurant. The student invested part of the money at 
and the rest at 
If the student received a total of $519 in interest at the end of the year, how much was invested at 
A. $3600
B. $3300
C. $985
D. $3450
Answer: A
You might also like to view...
The position vector of a particle is r(t). Find the requested vector.The acceleration at t = 1 for r(t) = t5i + 6ln
j + 
k
A. a(1) = 20i + 
j - 14k
B. a(1) = 20i - 
j - 14k
C. a(1) = 20i + 
j + 14k
D. a(1) = 20i + 
j + 14k
Solve the variation problem.The voltage across a resistor is jointly proportional to the resistance of the resistor and the current flowing through the resistor. If the voltage across a resistor is 
for a resistor whose resistance is 
and when the current flowing through the resistor is 
find the voltage across a resistor whose resistance is 
when
the current flowing through the resistor is 
A. 48 volts
B. 24 volts
C. 42 volts
D. 56 volts
Find the constant of variation for the stated condition: y varies directly as x and inversely as z, and y = 63 when x = 27 and z = 3.
A. k = 7
B. k = 1,701
C. k = 9
D. 
E. 
Use the power rule and the power of a product or quotient rule to simplify the expression.
4
A. 
B. 
C. 
D. 