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lilavasa [31]
3 years ago
11

Can someone plz help?​

Mathematics
2 answers:
sattari [20]3 years ago
6 0

Answer:

Division property of equality

Step-by-step explanation:

What she did was ;

\frac{-3x}{-3} =\frac{3}{-3} \\\\x =-1

Aloiza [94]3 years ago
4 0
Division Property of Equality

It is division property of equality because Bianca divides both sides by -3.
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Find the product of –1.5x and –0.25x.
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0.375x^2

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(-1.5x)(-0.25x)  

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= 0.375x^2

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What are the square roots of 144 over 256
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Minus 12 over 16 and 12 over 16 

There you go!
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4(2x - 5) = 5x -20 +3x
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Firstly, you have yo multiply out the first bracket by multiplying (2x - 5) by 4. The equation would then look like:

8x - 20 = 5x - 20 + 3x

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A rectangle is inscribed in a circle of radius r. if the width of the rectangle is x, what is the height of the rectangle?
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The diagonal of length 2r forms the hypotenuse of a right angled triangle with  one leg ( the width of the rectangle) = x. So by Pythagoras:-

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3 0
3 years ago
can i get some help? i tried figuring it out myself already but i must have done something wrong. please help!
zaharov [31]

First, we'll set up two equations. One for the amount of each coin and another for the value of the coins.

N will represent nickels

D will represent dimes

N + D = 30

---The problem tells us that there are 30 total coins

0.05N + 0.10D = 2.95

---Nickels are worth 5 cents and dimes are worth 10 cents, and the total value of the coins is 2.95

Now that we have our equations, we need to solve for one of the variables in the first equation. I will solve for N.

N + D = 30

N = 30 - D

Then, we take that equation and substitute our new value for N into the second equation (value) and solve for D.

0.05(30 - D) + 0.10D = 2.95

1.5 - 0.05D + 0.10D = 2.95

1.5 + 0.05D = 2.95

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Now that we know how many dimes there are, we can plug that value into our equation for N and solve for N.

N = 30 - D

N = 30 - 29

N = 1

Therefore, there are 29 dimes and 1 nickel.

Hope this helps!

5 0
3 years ago
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