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nikklg [1K]
3 years ago
14

Help!!!!!!!!!!!!!!!!!!!!!!!!!!!

Mathematics
1 answer:
shepuryov [24]3 years ago
5 0

Answer:

4

Step-by-step explanation:

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14xy – 13 - xy – 22x – 20=<br> I really need help with this question
Aliun [14]

I'm sorry I'm not home so I can't tell you the answer to this but what I can tell you is put together the xy and then put together the -13-20. Hope this helps.

4 0
4 years ago
Read 2 more answers
I have just one question, could someone please answer it?? (see linked file)
Annette [7]

The solution is x=1 and y=-2

Further explanation:

Given equations are:

\frac{7}{2}x-\frac{1}{2}y=\frac{9}{2}\\3x-y=5

Multiplying equation no. 1 with 2 will give us:

7x-y=9       Eqn 3

From equation no 2:

3x-y=5\\-y=5-3x\\y=3x-5

Putting the value of y in eqn 3

7x-(3x-5)=9\\7x-3x+5=9\\4x=9-5\\4x=4\\\frac{4x}{4}=\frac{4}{4}\\x=1\\Putting\ x=1\ in\ equation\ 2\\3(1)-y=5\\3-y=5\\-y=5-3\\-y=2\\y=-2\\

The solution is x=1 and y=-2

Keywords: Linear equations, Solution set

Learn more about linear equations at:

  • brainly.com/question/561665
  • brainly.com/question/537998

#LearnwithBrainly

8 0
3 years ago
What is the constant rate of change between (3.6,5.2) and (-0.6,7)
Marina86 [1]

Answer:

Investigation 7 introduces a method for computing the ... at a constant rate with respect to the measure of another, then the changes in the ... –5.2 = –3.1∆x ... y = 3.6 + (5.1/–3.5)(x – 12.2) or y = –1.5 + (5.1/–3.5)(x – 8.7).

7 0
3 years ago
A bag contains 80 marbles: 40 are red, 20 are blue, and 20 are black. what is the probability of selecting a red or blue marble
DedPeter [7]
40 % out of 80 for red
20% out of 80 for blue
4 0
3 years ago
Solve for "<img src="https://tex.z-dn.net/?f=x" id="TexFormula1" title="x" alt="x" align="absmiddle" class="latex-formula">"<br>
Nezavi [6.7K]

Answer and Step-by-step explanation:

The answer for this linear equation is : x=\frac{22}{3}

Let's Solve your equation step-by-step :

x=\frac{22}{3}

Step 1 : Simplify both the sides of the equation :

\frac{x}{4}+\frac{x-5}{2}=3

\frac{x}{4}+\frac{1}{2}x+\frac{-5}{2}=3 (By Distributing)

\frac{1}{4}x+\frac{1}{2}x+\frac{-5}{2}=3

(\frac{1}{4}x+\frac{1}{2}x )+(\frac{-5}{2})=3 (combining the like terms)

\frac{3}{4}x+\frac{-5}{2}=3

Step 2 : Add \frac{5}{2}to both sides :

\frac{3}{4}x +\frac{-5}{2}+\frac{5}2} =3+\frac{5}{2}

\frac{3}{4}x=\frac{11}{2}

Step 3 : Now, multiply both the sides by \frac{4}{3} :

(\frac{4}{3}) × (\frac{3}{4}x) = (\frac{4}{3}) × (\frac{11}{2})

x=\frac{22}{3}

We've got our answer as : x=\frac{22}{3}

5 0
3 years ago
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