Answers to problems on page 7

Answers to problems on page 7
January 1, 2005

1. 1,571

Low elevation = -294

High elevation = 1,277

Difference = 1,571

2. e) 29

3. e) L - 3

4. 8

X + Y = 14

.20X + .33Y = 3.84

Therefore,

.20X + .33(14 - X) = 3.84

Solving,

X = 6 and Y = 8

5. d) 29

NAEP's 'Hard' 8th-Grade 'Algebra and Functions' Questions