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If the equations 4x + 5y = 20 and 8x + 10y = 40 are given, what can be concluded about their solutions?

B. THEY HAVE INFINITELY MANY SOLUTIONS.
Posted in:  Linear Equations -  Algebra -  Mathematics

A store sells pencils for $0.50 each and erasers for $0.75 each. If a student buys a total of 10 items for $6.00, how many pencils did the student buy?

B. 4
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What is the solution to the system of equations: 2x + 3y = 6 and x - y = 1?

C. (1,2)
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Solve the following system of equations using substitution: x + 2y = 10 and y = 3x - 5.

A. (5, 2.5)
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If the system of equations 3x + 5y = 15 and 6x + 10y = 30 is analogous to which of the following systems?

C. 5X + 10Y = 25 AND 10X + 20Y = 50
Posted in:  Linear Equations -  Analogy -  Verbal Reasoning