Math Problem Statement
What is the volume of a cube whose surface area is 294? (A) 125 (B) 216 C) 294 (D) 343 4. The ratio of boys to girls in a certain classroom was 2 : 3. If boys represented five more than one-third of the class, how many people were in the classroom? (A) 30 (C) 75 5. What is the average of 530, 560, 517, 513 and 590? (A) 5210 (C) 529 +559 +516 +512 +589 6. Ifp+1<3p+5,then: (A) p<-2 (C) p=0 (B) 45 (D) 60 (B) 5209 (D) 5205 (B) p>-2 (D) p>2 7. If an equilateral triangle and a square have the same perimeter, what is the ratio of the lengths of the sides of the equilateral triangle to the lengths of the sides of the square? (A) 3 : 4 (C) 1 : 2 (B) 4 : 3 (D) 1 : 3
Solution
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Math Problem Analysis
Mathematical Concepts
Geometry
Algebra
Averages
Ratios and Proportions
Inequalities
Formulas
Surface Area of a Cube: 6s^2
Volume of a Cube: s^3
Average: Sum of numbers / Number of terms
Ratio of Perimeters: 3s_triangle = 4s_square
Theorems
Properties of Equality and Inequality
Ratio and Proportion Theorems
Suitable Grade Level
Grades 6-8
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