Ratios & Proportional Relationships
Are these ratios proportional?
3/24 and 4/28
no
3/24 is 1/8
4/28 is 1/7
The ratios are not equivalent and therefore not proportional
What is |-10|?
10
What operation (addition, subtraction, etc) will isolate x?
x/4=24
MULTIPLICATION
2 1/6 + 5 4/6 =
7 5/6
You spend 150 minutes in 3 classes. How many minutes do you spend in 5 classes?
150 min/3 classes=50 min/class
50min/class * 5 classes = 250 minutes
Simplify the expression
-1/2 + 3/5
1/10
Solve for x
x/8=-3
x=-24
5 1/2 + 5 1/2 =
11
The equation to represent a lemonade stand's profit is p=1.50c. Let p represent profit and c represent cups sold.
How much profit does the stand make per cup?
$1.50
Evaluate the expression is a=-2 and b=3
ab
-6
Solve the inequality for x
-3x-10>11
x< -17
3 5/8 + 6 1/8 =
9 6/8 = 9 3/4
Write 2.78 as a mixed fraction in lowest terms
2 39/100
Find the sum
(2x+1)+(x-1)
3x
2 13/19 + 18/19 =
2 31/19 = 3 12/19
Evaluate the expression when x=3 and y=-2
|-x+y|
5
Find the difference
(5x+6) - (x+9)
4x-3
1/13 + 1/3 =
16/39