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Grade 7 Review

review for EOGs

QuestionAnswer
Define diameter the distance across a circle. It goes through the center and touches the circle twice. It is twice the radius.
Define radius The distance from the center of the circle to the cirlce's edge. It is half the diameter. You need the radius to find area.
Define circumference Distance around a circle. C=πd or c=2πr
Define area of a circle Amount of flat space inside a circle. A = πrr or pi times radius squared
To find the radius if you know the diameter Divide by 2
To find the diameter if you know the radius Multiply by 2
Formula for area of a circle Pi times radius squared. Or πrr
Formula for circumference C=πd Or c=2πr
How do you find the diameter if you know the circumference? Divide by 2π
How do you find the radius if you know the area? Divide by π, then find the square root
What is the LCD for 2/7 and 2/8? 56
What is the LCD for 3/8 ad 5/16? 16
What is the LCD for 5/10 and 4/15 30
To simplify 14/20 Divide numerator and denominator by 2
To simplify 8/12 Divide numerator and denominator by 4
Simplify 4/10 2/5
Simplify 6/9 `2/3
Simplify 12/20 3/5
Change 5 2/3 to improper 173
Change 2 3/7 to improper 17/2
Change 11/4 to mixed 2 3/4
Change 22/13 to mixed 1 9/13
Solve 5 + w = 22 W=17
Solve r + 6 = 4 R = -2
Solve p + 9 = 9 P = 0
Solve 7 = r + 9 R = -2
Solve 24 < 20 + m M > 4
Solve m - 5 >13 M > 18
Solve 30 = m + 10 M = 20
Solve -15 < m - 9 M > -6
Solve g + 14 < -10 G < -24
Solve -50 + r = 40 R = 90
Solve M - 10 = 0 M = 10
Solve 4r < 32 R < 8
Solve 8r = 5 R = 5/8
Solve -8r > 5 R < -5/8
Solve g/3 = 8 G = 24
Solve g/3 > 8 G > 24
Solv b/2 = -14 B = -28
Solve 70 = b/2 B = 140
Solve -10 > m/6 M < -60
Solve 4n + 5 = 17 N= 3
Solve 2v - 6 = 22 V = 14
Solve 11 = 7 + g/4 G = 16
Solve -6h + 21 < 3 H > 3
Solve 7a + 100 = 170 A = 10
Solve k/5 - 16 = 4 K = 100
Solve -5m + 3 = 33 M = -6
Define mean Add the divide. Add the data, the divide by the number of data there is.
Define median The middle number if the data is in order
Define mode The most common data
Define range The biggest minus the smallest number in a set of data
Define absolute value The distance a number is from zero. Absolute value is always positive
Define acute angle An angle less than 90 degrees
Define acute triangle A triangle where all three angles are less than 90 degrees
Define right angle An angle equal to 90 degrees
Define a right triangle A triangle with one angle equal to 90 degrees
Define obtuse angle An angle greater than 90 degrees
Define obtuse triangle A triangle with one angle greater than 90 degrees
Define scalene triangle A triangle where all the sides are different. All the angles will also be different.
Define isosceles triangle A triangle with two equal sides. The angles across from them will also be equal.
Define equilateral triangle A triangle with all three sides the same. All three angles will also be the same.
How do you know if three side lengths can form a triangle? The sum (+) of the two smaller sides must be greater than the third side. Example: 4, 7, 9 works but 4, 7, 12 doesn't work
Simplify 5f + 4f 9f
Simplify 8h - h + 1 7h + 1
Simplify 6 + 7b + 5 7b + 11
Simplify 10v + 3 - v - 2 9v + 1
Simplify 5(2r + 7)
Simplify 9(9h - 10) 81h -90
Simplify -2(4 + x) -8 -2x Or -8 + (-2x) Or -2x + 8
Simplify -10(8r + 33) -80R - 330
What is the coefficient in 8y - 232 8
What is the coefficient in 0.92j + 25 0.92
In 44m + 234, 44 is the Coefficient
In 44 - 33y, 44 is the Constant
In 12q - 9, what is the constant 9
Define complementary angles Two angles whose sum is 90
Define supplementary angles Two angles whose sum is 180
What is the complement to a 25 degree angle? 65
What is the supplement to a 25 degree angle? 155
What is the complement to an 89 degree angle? 1
What is the supplement to an 89 degree angle? 91
Solve the proportion 5/10 = m/30 15
Solve the proportion 2/7 = 6/g 21
Solve the proportion n/14 = 3/7 6
How do you find the constant of proportionality from a graph? Pick a point, go up and over. Or write the ratio y/x.
How do you find the constant of proportionality from a table? Divide the second column by the first column, or the second row by the first row.
What are the coordinates of the origin? (0,0)
What is the probability of a coin landing on heads three times in a row? 1/2 x 1/2 x 1/2 = 1/8
Created by: doug.goldman
 

 



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