Solve the system of equations by using elimination by addition.

A. (2.5, 1)
B. (.25, 1)
C. (3.1, 1)
D. (2.5, .1)


Answer: A

Mathematics

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A. 0.416% B. 416% C. 41.6% D. 0.0416%

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Factor the trinomial completely. If the polynomial cannot be factored, write "prime."x2 + 20x + 21

A. prime B. (x + 21)(x - 1) C. (x + 21)(x + 1) D. (x + 7)(x + 3)

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Solve the problem.A company makes three chocolate candies: cherry, almond, and raisin. Matrix A gives the number of units of each ingredient in each type of candy in one batch. Matrix B gives the cost of each ingredient (dollars per unit) from suppliers X and Y. What is the cost of 100 batches from supplier X?

A. $6600 B. $3300 C. $4800 D. $7800

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Find the median of the given data set.23, 28, 38, 48, 61, 73, 80

A. 38 B. 48 C. 50 D. 61

Mathematics