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Triss [41]
2 years ago
8

9. Which property is illustrated by 6 x 5 = 5 x 6?

Mathematics
2 answers:
MariettaO [177]2 years ago
8 0
Communitive property
Gala2k [10]2 years ago
5 0
Multipicative idenitiy

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Mary is getting up a fence for her square garden.The garden has an area of 100 square feet.How long will each side of fence have
saw5 [17]
It would be 25 feet 25x4= 100
7 0
3 years ago
Bryan’s monthly electric bill is determined by adding a flat administration fee to the product of the number of kilowatt hours o
Sophie [7]
We will form the equations for this problem:
(1) 1100*y + z = 113
(2) 1500*y + z = 153
z = ? Monthly administration fee is notated with z, and that is the this problem's question.
Number of kilowatt hours of electricity used are numbers 1100 and 1500 respectively.
Cost per kilowatt hour is notated with y, but its value is not asked in this math problem, but we can calculate it anyway.
The problem becomes two equations with two unknowns, it is a system, and can be solved with method of replacement:
(1) 1100*y + z = 113
(2) 1500*y + z = 153
----------------------------
(1) z = 113 - 1100*y [insert value of z (right side) into (2) equation instead of z]:
(2) 1500*y + (113 - 1100*y) = 153
-------------------------------------------------
(1) z = 113 - 1100*y
(2) 1500*y + 113 - 1100*y = 153
------------------------------------------------
(1) z = 113 - 1100*y
(2) 400*y + 113 = 153
------------------------------------------------
(1) z = 113 - 1100*y
(2) 400*y = 153 - 113
------------------------------------------------
(1) z = 113 - 1100*y
(2) 400*y = 40
------------------------------------------------
(1) z = 113 - 1100*y
(2) y = 40/400
------------------------------------------------
(1) z = 113 - 1100*y
(2) y = 1/10
------------------------------------------------
if we insert the obtained value of y into (1) equation, we get the value of z:
(1) z = 113 - 1100*(1/10)
(1) z = 113 - 110
(1) z = 3 dollars is the monthly fee.
6 0
3 years ago
Read 2 more answers
3c+2d=2;d=4 step by step
mina [271]
Hi there!

3c + 2d = 2 for d = 4
3c + 2(4) = 2
3c + 8 = 2
Subtract 8 to both sides
3c + 8 - 8 = 2 - 8
3c = -6
Divide both sides by 3
3c/3 = -6/3
c = -2

I hope I helped!
6 0
3 years ago
A surface area of a cube is 96cm. What is the length of one side? What is its volume
Ganezh [65]
You are given the surface area of the cube which is 96cm2. You are asked to find the length of one side and its volume. Note that the surface area of the cube is equal to 6 times the square root of s (the side of the cube) and the volume is the cube root of s. So,  

SA = 6*s^2
96cm2 = 6*s^2
s^2 = 16cm
<u>s = 4cm, this is the length of one side.</u>  

V = s^3
V = (4)^3
<u>V = 64cm3, this is the volume of the cube.</u>
8 0
3 years ago
Read 2 more answers
F x = 3, then what is the value of y?<br> A) 0 <br> B) 3 <br> C) 4 <br> D) 9
lana66690 [7]
The answer is:  [B]:  " 3 " .
__________________________________________
  If   f(x) = 3 ;  then  "y = 3" . 
__________________________________________
 (assuming this is the only information we are given).
__________________________________________
7 0
3 years ago
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