Inequalities
The symbol > means "greater than
True
Solve x/7=9
63
Formula?
A=bh
what´s the formula?
A = ½(b₁ + b₂)h
what´s the formula
V = l × w × h
A ride allows only people under 48 inches tall.
Write an inequality.
h<48
Solve 10/x=5
2
Find the area.
base= 8 cm
height= 5 cm
40 cm2
Find the area of the trapezoid:
Bases:
8 cm and 10 cm
Height = 4 cm
36 cm2
A storage box has a volume of 288 cm³.
Length = 12 cm
Width = 6 cm
Find the height.
4 cm
A school bus can carry no more than 48 students.
Write an inequality if s represents the number of students.
s≤48
A number divided by 15 equals 18. The number is m.
Write the equation.
m÷15=18 or m/15=18
A park has the shape of a parallelogram with a base of 32 m and a height of 18 m. Grass seed costs $4 per square meter.
How much will it cost to cover the entire park with grass?
$2,304
Both bases must be added before multiplying by the height.
true
A fish tank is
18 in long
10 in wide
12 in high
what´s the volume?
2,160 in3
Maria has $42. She wants to buy shirts that cost $8 each.
Write an inequality to find how many shirts (s) she can buy.
8s ≤ 42
A one-step division equation can be solved using either multiplication or division.
False
It is solved using the inverse operation, which is multiplication.
A farmer owns two parallelogram-shaped fields.
Field A:
Base = 24 m
Height = 15 m
Field B:
Base = 21 m
Height = 18 m
Which field has the greater area? by how much?
Field B by 18 m2
A trapezoid has an area of 135 cm².
Bases = 12 cm and 18 cm.
Find the height.
h=9 cm
A rectangular aquarium measures
30 in × 18 in × 20 in.
It is filled to 75% of its capacity.
How many cubic inches of water are in the tank?
8,100 in3
Every equation can be written as an inequality without changing its meaning.
False
An equation means two quantities are equal. An inequality compares quantities that are not necessarily equal.
What´s the name of the math property to solve one step division equation
Multiplication Property of Equality
A parallelogram with a longer base always has a greater area than a parallelogram with a shorter base.
False
A shorter base with a greater height can have a larger area.
A park has the shape of a trapezoid.
The two bases measure 35 m and 21 m.
The height is 18 m.
If grass costs $7 per square meter, how much will it cost to cover the entire park?
$3,528
A rectangular aquarium measures
30 in × 18 in × 20 in.
It is filled to 75% of its capacity.
How many cubic inches of water are in the tank?
8,100 in3