Solve the equation.5(2z - 5) = 9(z + 3)

A. 2
B. 52
C. -2
D. 7


Answer: B

Mathematics

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Solve the system of equations using substitution.

A. x = 5, y = 10 or (5, 10) B. x = 5, y = 10; x = 5, y = -10  or (5, 10), (5, -10) C. x = 5, y = 10; x = -5, y = 0  or (5, 10), (-5, 0) D. x = 5, y = 10; x = 5, y = -10; x = -5, y = 0 or (5, 10), (5, -10), (-5, 0)

Mathematics

Write the number 47 in the Roman system.

What will be an ideal response?

Mathematics

Classify the equation as a contradiction, an identity, or a conditional equation. 6(x + 5) - 8(x + 5) = -2x + 70

A. Contradiction B. Conditional C. Identity

Mathematics

Translate the statement into an equation. Let x represent the unknown number. DO NOT SOLVE.If 3 times a number is added to -7, the result is equal to 10 times the number.

A. 4x + (-7) = 10x B. 13x - 10x = 7 C. 3x + (-7) = 10x D. 10(3x - 7) = -7

Mathematics