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3 years ago

14

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

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:

#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).

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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