Solve the problem.Anne and Nancy use a metal alloy that is 14% copper to make jewelry. How many ounces of an alloy that is 11% copper must be mixed with an alloy that is 16% copper to form 125 ounces of the desired alloy?
A. 50 ounces
B. 75 ounces
C. 80 ounces
D. 52 ounces
Answer: A
Mathematics
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Solve the problem.Find the nth term of the following geometric sequence:1 + 
, 3 + 
, 3 + 3
, . . .
A. (1 + 
) ? 3n-1
B. (1 + 
)(
)n-1
C. (1 + 
)(
)n
D. (3 + 
)(
)n-1
Mathematics
The graph of two equations along with the points of intersection are given. Substitute the points of intersection into the systems of equations. Are the points of intersection solutions to the system of equations (Y/N)?
A. Yes B. No
Mathematics
Solve the system of equations by Gaussian elimination.
A. {(3, -1, -3)} B. {(-3, 3, -1)} C. {(3, -3, -1)} D. ?
Mathematics
Simplify the complex fraction.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics