Solve the system by substitution. If the system is inconsistent or has dependent equations, say so.5x + 3y = 80 2x + y = 30
A. {(0, 0)}
B. {(10, 10)}
C. {(0, 10)}
D. {(10, 0)}
Answer: B
You might also like to view...
Suppose Ingredient I is made up of 80% micoden and 20% water, Ingredient II is made up of 30% micoden, 50% bixon, and 20% water, and these ingredients are mixed together. How much micoden is in the mixture? INGREDIENT I INGREDIENT II MIXTURE 2 lb 11 lb 13 lb?
A. 1.6 lb B. 4.9 lb C. 2.2 lb D. 13 lb E. 3.3 lb
Combine. Assume that all variables represent non-negative real numbers.5
+ 3
A. 15
B. 5
+ 3
C. 8
D. 8
Solve the problem.During elections at the local union, 
of the members voted. If there are 165 members, how many voted?
A. 64 members B. 56 members C. 15 members D. 60 members
Solve the equation for ? if 
. Give your answer in degrees.
?
?
A. 0°, 120°, 240° B. 30°, 150°, 270° C. 90°, 210°, 330° D. 60°, 180°, 300° E. 150°, 180°, 210°