Express the exercise as a system of linear equations, then find the solution. Use a calculator where appropriate.Anne and Nancy use a metal alloy that is 18.5% copper to make jewelry. How many ounces of an alloy that is 17% copper must be mixed with an alloy that is 24% copper to form 98 ounces of the desired alloy?
A. 26 oz
B. 77 oz
C. 21 oz
D. 79 oz
Answer: B
Mathematics
You might also like to view...
The equation of an ellipse is given. Put the equation in standard form and sketch the ellipse.6x2 + (y + 2)2 = 6
A. x2 + 
= 1
B. 
+ (y + 2)2 = 1
C. x2 + 
= 1
D. 
+ (y + 2)2 = 1
Mathematics
Find the exact value of the following expression without using a calculator.sin 
A. 
B. 
C. - 
D. - 
Mathematics
Write the expression as a single logarithm.logq q - logq r + 2logq p
A. logq 
B. logq 
C. logq qp2r
D. logq 
Mathematics
Find a polynomial function of lowest degree with rational coefficients that has the given numbers as some of its zeros.2 - i, -6
A. f(x) = x3 - 2x2 - 19x + 24 B. f(x) = x3 - 2x2 - 19x - 30 C. f(x) = x3 + 2x2 - 19x + 30 D. f(x) = x3 + 4x2 - 20x + 30
Mathematics