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morpeh [17]
3 years ago
11

please help I'm actually crying! Find A and B if the graph of Ax + By = 7 passes through (2,1) and is parallel to the graph of 2

x - 7y = 3.
Mathematics
1 answer:
Eddi Din [679]3 years ago
4 0

Answer:

awwww dont cry. i know this isnt helpful but if it makes u feel better, im stuck on it too. Take a deep breath and hope someone will come and help us, <3

Step-by-step explanation:

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PLSSS HELP IF YOU TURLY KNOW THISS
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Step-by-step explanation:

Since 8 is double of four and you cant find the denominator just double 7 to get 14.

Hope this helped.

A brainliest is always appreciated.

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Construct a function with a rate of change of 1/3 and an initial value of -3.
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3 years ago
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What is the value of x in the equation three-fourths (one-fourth x 8) minus (one-half x 2) = startfraction 3 over 8 endfraction
Oksi-84 [34.3K]

The value of x in the equation is x=-44.

The given equation is \frac{3}{4}\left(\frac{1}{4}x+8\right)-\left(\frac{1}{2}x+2\right)=\frac{3}{8}(4-x)-\frac{1}{4}.

An algebraic expression in mathematics is an expression that's made from variables and constants, together with algebraic operations (addition, subtraction, etc.). Expressions are made of terms.

Firstly, apply the distributive property as a(b+c)=ab+ac and get

\begin{aligned}\frac{3}{4}\times \frac{1}{4}x+\frac{3}{4}\times 8-\frac{1}{2}x-2&=\frac{3}{8}\times 4-\frac{3}{8}\times x-\frac{1}{4}\\ \frac{3x}{16}+6-\frac{x}{2}-2&=\frac{3}{2}-\frac{3x}{8}-\frac{1}{4} \end

Now, rearrange the terms by taking variable terms on the left-hand side and constant terms on the right-hand side as

\frac{3x}{16}-\frac{x}{2}+\frac{3x}{8}=\frac{3}{2}-\frac{1}{4}-6+2

Further, simplify the above expression by taking L.C.M as

\begin{aligned}\frac{3x-8x+6x}{16}&=\frac{6-1}{4}-4\\ \frac{x}{16}&=\frac{5-16}{4}\\ \frac{x}{16}&=\frac{-11}{4}\end

Then, multiply both sides with 4 and get

\begin{aligned}4\times \frac{x}{16}&=4\times \frac{-11}{4}\\ \frac{x}{4}&=\frac{-11}{1}\end

Furthermore, cross multiply both sides and get

x=-44

Hence, the value of x in the equation which is given \frac{3}{4}\left(\frac{1}{4}x+8\right)-\left(\frac{1}{2}x+2\right)=\frac{3}{8}(4-x)-\frac{1}{4} is x=-44.

Learn about algebraic expression from here brainly.com/question/8690932

#SPJ4

8 0
2 years ago
11X - X2 +4y2 = 52<br> how do i solve and graph
timofeeve [1]
<h3>I'll teach you how to solve 11X - X2 +4y2 = 52</h3>

-----------------------------------------------------------

11X - X2 +4y2 = 52

Add similar elements:

9x+4*2y= 52

Multiply the numbers 4*2:

4*2= 8

9x+8y= 52

Subtract 8y from both sides:

9x+8y-8y= 52- 8y

Simplify:

9x= 52- 8y

Divide both sides by 9:

9x/9= 52/9 - 8y/9

Simplify:

x= \frac{52-8y}{9}

Your Answer Is x= \frac{52-8y}{9}

Plz mark me as brainliest if this helped :)

7 0
3 years ago
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