Answer: 54 cm²
Step-by-step explanation: In this problem, we're asked to find the area of the trapezoid shown. A trapezoid is a quadrilateral with one pair of parallel sides.
The formula for the area of a trapezoid is shown below.

The <em>b's</em> represent the bases which are the parallel sides and <em>h</em> is the height.
So in the trapezoid shown, the bases are 6 cm and 12 cm and the height is 6 cm. Plugging this information into the formula, we have
.
Next, the order of operations tell us that we must simplify inside the parentheses first. 6 cm + 12 cm is 18 cm and we have
.
is 9 cm and we have 9 cm · 6 cm of 54 cm²
So the area of the trapezoid shown is 54 cm².
Answer:
825 tickets divided by 3 theaters is 275 seats so there should be 275 seats in each theater
Step-by-step explanation:
Answer:
35
Step-by-step explanation:
Answer: 105 sandwiches can be made from all the peanut butter.
Step-by-step explanation:
Given: Total jars of peanut butter = 21
Part of peanut butter required for each sandwich = 
Total number of sandwiches made = ( Total jars of peanut butter ) ÷ (Part of peanut butter required for each sandwich)

Hence, 105 sandwiches can be made from all the peanut butter.
Answer: note I will just replace the Shape by an X
a) X + 9 = 9 + 6; X=6 Commutative Propertie
b) 0 + X = 7; X=7 Additive Identity Propertie
c) X + (7 + 3) = (4 + 7) + 3; X=4 Associative Propertie
Step-by-step explanation:
There are four mathematical properties which involve addition. Commutative, associative, additive identity and distributive properties.
Commutative property: When two numbers are added, the sum is the same regardless of the order of the addends.
Associative Property: When three or more numbers are added, the sum is the same regardless of the grouping of the addends.
Additive Identity Property: The sum of any number and zero is the original number.
Distributive property: The sum of two numbers times a third number is equal to the sum of each addend times the third number.