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aleksandr82 [10.1K]
3 years ago
8

Complete this statement 27a^2x^2+45a^2x+36a^2=9a^2()

Mathematics
1 answer:
ioda3 years ago
5 0

Answer:

9x

Step-by-step explanation:

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PLEASE HELP
Licemer1 [7]

Answer:

35 dimes and 60 nickels

Step-by-step explanation:

let d = # of dimes and n = # of nickels

We know that Timmy has a total of 95 coins, consisting of dimes and nickels

So d + n = 95

The total value of his bank is $6.50

A dime is worth $0.10 and a nickel is work $0.05

So 0.10d + 0.05n = $6.50

Note that we've just created a system of equations that we can solve

We have the two equations

0.10d + 0.05n = 6.50 and d + n = 95

There are many different methods we can use to solve this system but the easiest way in this situation is probably going to be the substitution method.

First we are going to want to rearrange the terms of the second equations so that one of the variables are defined.

d + n = 95

- subtract d from both sides -

n = 95 - d

We now defined "n"

Now that we have defined one of the variables we can plug in ( or substitute ) the value of it into the other equation. Once we substitute it we can solve for the other variable.

0.10d + 0.05n = 6.50

n = 95 - d

0.10d + 0.05(95 - d) = 6.50

we now solve for d

0.10d + 0.05(95 - d) = 6.50

step 1 distribute the 0.05

0.05 * 95 = 4.75 and 0.05 * -d = -0.05d

0.10d + 4.75 - 0.05d = 6.50

step 2 combine like terms 0.10d  - 0.05d = 0.05d

0.05d + 4.75 = 6.50

step 3 subtract 4.75 from both sides

0.05d = 1.75

step 4 divide both sides by 0.05

0.05d / 0.05 = d and 1.75 / 0.05 = 35

d = 35

Now that we have found the value of one variable we can plug it into one of the equations and solve for the other variable ( note that the equation that we use does not matter, we will acquire the same answer )

d + n = 95

d = 35

35 + n = 95

subtract 35 from both sides

n = 60

We can conclude that he has 35 dimes and 60 nickels

4 0
2 years ago
How do you solve the substitution of y=5x-3 and y=-6x-3
svlad2 [7]
5x-3=y      6x-3=y
x=1            x=1
51-3=y      61-3=y
51=5         61=6
5-3=y        6-3=y       
2               3
y=2           y=3               


8 0
3 years ago
Which equation calculates the number of 1/3-foot pieces that can be cut from a piece of
harina [27]

Answer:

7:\dfrac{1}{3}=21 pieces

Step-by-step explanation:

Suppose you have a 7 feet long wood.

You need to find how many \frac{1}{3}-foot pieces can be cut from this wood.

To find this number of pieces, you have to divide the whole length of the wood by the length of one piece:

7:\dfrac{1}{3}=\dfrac{7}{1}\cdot \dfrac{3}{1}=21

8 0
3 years ago
the weight of 1m^3 of air is approximately 1.3×10^3g. suppose that the volume of air inside of a building is 3×10^6 m^3. How muc
Afina-wow [57]
82 X 10-6 glm3of pollutants in the air. ... The weight of 1m3 of air is approximately 1.3 X 103g.Suppose that the volume of air inside of a building is 3 x 106 m3.
3 0
3 years ago
What are all natural numbers using the digits 7 , 0 ,6 without repeating the numbers​
Lelu [443]

Answer:

Step-by-step explanation:

The natural numbers can be :

076

067

706

760

607

and 670

Hope this helps

plz mark as brainliest!!!!!!

7 0
3 years ago
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