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3 years ago

Find the solution of this system of equations -x-4y=37 -2x-4y=-53

Mathematics

2 answers:

mixer [17]3 years ago

7 0

Answer:

X=90, y =-127/4

Step-by-step explanation:

Subtract the second equation from the first and you get X+ 0y= 90. Replace x=90 in either equation and you get y= -127/4.

Lelu [443]3 years ago

5 0

Answer:

Final answer is x=90, $y=-\frac{127}{4}$

Step-by-step explanation:

Given equations are:

-x-4y=37 ...(i)

-2x-4y=-53 ...(ii)

multiply (ii) by -1

2x+4y=53 ...(iii)

Add (i) and (iii)

x=90

plug value of x=90 into (i)

-x-4y=37

-90-4y=37

-4y=37+90

-4y=127

$y=-\frac{127}{4}$

Hence final answer is x=90, $y=-\frac{127}{4}$

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tiny-mole [99]

Answer:

x=9/2

Step-by-step explanation:

First distribute 2

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Then add 2x from the right side to the left side

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jeka94

Answer:

Step-by-step explanation:

Let $M(x)$ be the cost of renting from Mozart's Music Store for $x$ years, and $B(x)$ be the cost of renting from Bach's Music Store for $x$ years.

From the problem statement, we can come up with the following equations:

$M(x) = 34(12x)$

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Plugging in $x = 9$ for each equation, we can get the answer:

$M(9) = 34(12 * 9)$

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3 years ago

What is the slope intercept form when m = 1/2 & b = 89 ?<br> Helppppppppp

Zina [86]

Answer:

$y = \frac{1}{2}x + 89$

Step-by-step explanation:

slope-intercept form: y = mx + b

y = (x , y)

x = (x , y)

m = slope = 1/2

b = y-intercept = 89

Plug in the corresponding numbers & variables to the corresponding variables:

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valentinak56 [21]

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Step-by-step explanation:

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