exam Maths Puzzle Numerical Ability

Solve the following system of linear equations by the elimination method:
y=2x-5
8x-4y=20

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exam Other Question

Which are dependent events?

A. Flipping a penny and a dime
B. Spinning a spinner twice
C. Drawing a card, another card without replacement
D. Drawing a card, replacing it, drawing another card I'm having trouble with questions 50 and 58 in chapter 9 section 9.3 and I'm also having trouble with problem 54 in chapter 9 section 9.4. Please help!