Rates, Ratios, Proportions
What is the ratio of vowels to consonants in the word "alphabet". Write it 3 different ways.
3:5, 3 to 5, 3/5
-94 + 56 =
-38
y + 35 = -943
-978
-6a + 5b + 13c - 53a + 7b - 19c
-59a + 12b - 6c
What is the formula for solving for:
Perimeter of a rectangle -
Area of a rectangle -
Volume of a rectangular prism -
Surface Area of a rectangular prism -
Perimeter = 2L + 2W
Area = L x W
Volume = L x W x H
Surface Area = 2LW+2LH+2HW.
Write 5 ratios equivalent to 7:10
14:20, 21:30, 28:40, 35:50, 42:60
-43 - 236
-279
m - 43 = -176
m = -133
-4(5a + 3b) - (2a - 4b)
-22a - 8b
What is the definition of absolute value?
Absolute value is the number of spaces a number is from zero on a number line.
Solve for x.
5/13 = 9/x
23 2/5
- 45 - -67 =
22
y/-4 + 67 = -45
-448
-5a + 19 > -28
a< 9 2/7
What do you call two angles that add up to 90 degrees?
What do you call two angles that add up to 180 degrees?
What do you call an angle that is 180 degrees?
Complimentary angles
Supplementary angles
Straight angle
Are 12/35 and 18/41 proportional? How do you know?
No - when multiplied they equal different things
-14 x 67 x -3 x -56 x 85
Negative
- 18r + 5 = 12r -28
r = 1 1/10
y/5 + 11 > 61
y > 200
What is 5!
5 x 4 x 3 x 2 x 1 =120
Which ratio is bigger?
56/72 or 77/99
They are equal
What is the absolute value of -67?
67
4(-3y+2) + 2(-5y+4) = -66
y = 3 8/11
-5(a + 2) + 3(a - 4) < 42
a < 32
What do these words mean and how do you solve for them?
mean
median
mode
range
outlier
median - the middle number when the numbers are in order from least to greatest
mode - the number that appears the most
range - the difference between the greatest and largest number
outlier - the number that is far away from all the other data.