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

Keil is going to make 13 pounds of mixed nuts for a party. Peanuts cost $3.50 per pound and fancy nuts cost $7.50 per pound. If Keil can spend $85.50 on nuts, how many pounds of each should he buy? 8(2) + 2, 8(23) + 3, 8(234) + 4, 8(2345) + 5, ?, ?, ?
Simplify the expression and write down the next three numbers in the sequence. Describe the pattern.