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Pani-rosa [81]
2 years ago
7

Find the lowest common denominator (LCD) of these fractions. 2 12 3y

Mathematics
2 answers:
saw5 [17]2 years ago
7 0

Answer:

6y

Step-by-step explanation:

The denominators are prime numbers. So, multiply the denominators.

3y * 2 = 6y

6y is the LCD

julsineya [31]2 years ago
5 0

Answer:

its 12

Step-by-step explanation:

jus did it mark brainliest plzz

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5x+20y=4<br> x=-4y+1<br><br> Solve for x/y
Andrews [41]

Hi there!


Looks like a lot of work is going on here.


Let's start by solving this equation for the x.


5x + 20y = 4


Step 1) Add -20y to both sides.


5x + 20y + - 20y = 4 - 20y 5x = -20y + 4


Step 2) Divide both sides by 5.


\frac{5x}{5}  = \frac{-20y + 4}{5}


x = -4y +  \frac{4}{5}


Final Answer:


x = -4y +  \frac{4}{5}


Now, let's solve for y.


Step 1) Add -5x to both sides.


5x + 20y + - 5x = 4 + - 5x 20y = -5x + 4


Step 2) Divide both sides by 20.


\frac{20y}{20} =  \frac{-5x + 4}{20}


y =  \frac{-1}{4} x +  \frac{1}{5}


Final Answer:


y =  \frac{-1}{4} x +  \frac{1}{5}


Hope this helps! :D


Hint - When you have two variables in an equation, and you want to solve for one, the other will end up in your answer. :)

6 0
3 years ago
Write a real world situation that could be modeled by the equation 30x=48+22x
-BARSIC- [3]
For this case we have the following equation:
 30x = 48 + 22x
 An example of real life is:
 "Laura earns $ 30 per hour at her job, Maria earns 22 dollars per hour at her job plus 48 $ of fixed salary, find the number of hours for which both get the same profit"
 In the given equation,
 x: represents the time in hours.
5 0
3 years ago
What is the value of X?
LenKa [72]

Answer:

5.625 or 5-5/8 or 45/8

Step-by-step explanation:

Solve using Similar triangles again

ratio of 4:7.5

3/x=4/7.5 cross multiply

22.5=4x

x=22.5/4=5.625=5-5/8=45/8

7 0
2 years ago
Compare and order the numbers. 368,753 459,156, 796,154, 368,743, 530,076
myrzilka [38]
368,743 /368,753 /459,156/530,076/796,154 from smallest to biggest
6 0
3 years ago
How to cross multiply 9/12 =x/100?
Ilia_Sergeevich [38]
The answer is 75. 1. You simplify which is 3/4
2. Change to decimal then number you will get .75 move decimal two to the right to change to number then you will get 75!
6 0
2 years ago
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