exam Maths Puzzle Numerical Ability

Solve each system by the substitution method. Indicate whether each system is independent, inconsistent, or dependent.

10. 3y = x + 5
3x - 9y = -10


14. x = 1/8y - 1

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exam Other Question
Toy blocks are used to build a tower. The surface area and volume of the tower built with these blocks is shown in the table below.

MODEL TOWER VALUES


NUMBER OF BLOCKS/ solve this ? to me please. y= 1/2x + 2