Answer:
2.4 cans cost 47.4
If you cannot buy 2.4 cans, you must buy 3 cans, then you'll pay 59.25
Step-by-step explanation:
The lawn has trapezoidal shape, so find the area of the trapezoid using formula
In the diagram, ABED is rectangle, so BE = 12 m, thus ED = 20 m - 12 m = 8 m.
Consider right triangle EDC. By the Pythagorean theorem,
Thue,
Height = 15 m
Find the midline:
Hence,
One can cover 
to cover 
is needed
cans
One can costs 19.75, so 2.4 cans cost
If you cannot buy 2.4 cans, you must buy 3 cans, then you'll pay
Answer:
Answer is below
Step-by-step explanation:
Simplify both sides of the equation.
DIstribute
CLT
Add 12 to both sides.
Divide both sides by 6.
The answer is:
(M - 7) +15
Answer: 161 packages of gift wrap and the 44 packages of greeting cards
Step-by-step explanation:
We are told the class sells 205 packages in total of gift wraps and greting cards:
(1)
Where 
is the number of packages of gift wrap and 
is the number of packages of greeting cards.
In addition, we are told the class receives a total of 
selling each package of gift wrap for 
and each package of greeting cards for 
:
(2)
Isolating from (1):
(3)
Substituting (3) in (2):
(4)
Finding :
(5) This is the number of packages of greeting cards
Substituting (5) in (1):
(6)
Isolating :
This is the number of packages of gift wrap
Answer:
2
Step-by-step explanation:
4*2=8 and 8+4=12
