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3 years ago

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Solve the simultaneous equation.

="TexFormula1" title="4x - 3y = 7 \\ x = 13 - 3y" alt="4x - 3y = 7 \\ x = 13 - 3y" align="absmiddle" class="latex-formula">

1 answer:

Lelechka [254]3 years ago

8 0

X = 4 y = 3 4x-3y=7 x=13-3y

4(13-3y) -3y =7
52 -12y -3y =7
-15y=-45
-y=-3 y = 3

x=13-(3*3)
x=13-9
x =4

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Answer:

The probability is $0.383$ .

Step-by-step explanation:

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Number of ways in which 5 democrats and 1 republican can be selected= ${}^{7}{{C}_{5}}\times {}^{6}{{C}_{1}}$

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brainly.com/question/2561151?referrer=searchResults

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Read 2 more answers

Given the equation y = 4x - 3.A) If x increases by 1 unit, what is the corresponding change in y? B) If x decreases by 5 units,

DedPeter [7]

Answer:

A) y will increase by 4 unit.

B) y will decrease by 20 units

Step-by-step explanation:

Given equation that shows relation between x and y.

$y=4x-3$

A) If x is increased by 4 units

New value of y = $4(x+1)-3$

$=4x+4-3$

$=4x+1$

So, change in y = new value of y- original value of y

$=4x+1-(4x-3)$

$=4x+1-4x+3$

$=4$

Thus, the value of y will be increased by 4 units.

B) If x is decreased by 5 units

New value of y = $4(x-5)-3$

$=4x-20-3$

$=4x-23$

So, change in y = new value of y- original value of y

$=4x+1-(4x-3)$

$=4x-23-(4x-3)$

$=4x-23-4x+3$

= -20

Thus, the value of y will be decreased by 20 units.

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3 years ago