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2 years ago

Pls answer and thanks!!

Mathematics

2 answers:

QveST [7]2 years ago

5 0

Y=-3,x=1 because of the work

Keith_Richards [23]2 years ago

3 0

Answer:

Problem:

Solve 3x−y=6;y=x−4

Steps:

I will try to solve your system of equations.

y=x−4;3x−y=6

Step: Solvey=x−4for y:

Step: Substitutex−4foryin3x−y=6:

3x−y=6

3x−(x−4)=6

2x+4=6(Simplify both sides of the equation)

2x+4+−4=6+−4(Add -4 to both sides)

2x=2

(Divide both sides by 2)

x=1

Step: Substitute1forxiny=x−4:

y=x−4

y=1−4

y=−3(Simplify both sides of the equation)

Answer:

y=−3 and x=1

Step-by-step explanation:

Hope this helped you

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A person standing on a moving walkway travels 75 feet in 25 seconds. What equation represents this relationship? How many feet w

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2 years ago

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Answer:

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1 year ago

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Answer:

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2 years ago

Indentify the ordered pairs that are solutions to the linear inequality 5x-y>4. Select all that apply

zimovet [89]

Ordered pairs :

A. (4,2)

B. (5,-2)

C.(0,-1)

D.(-3,1)

E. (2,7)

F. (8,4)

Answer:

A, B, F are solution to the inequality

Step-by-step explanation:

5x - y > 4

To obtain the pairs which are solution to the linear inequality ; we plug in each orders pair of values into the inequality :

A.)

(4,2)

5x - y > 4

5(4) - 2 > 4

20 - 2 > 4

18 > 4 - - - - - - - True

(5, -2)

5x - y > 4

5(5) - (-2) > 4

25 + 2 > 4

27 > 4 - - - True

(0, -1)

5x - y > 4

5(0) - (-1) > 4

1 > 4 - - - - - - - Untrue

(-3,1)

5x - y > 4

5(-3) - 1 > 4

-15 - 1 > 4

-16 > 4 - - - - - > Untrue

(2,7)

5x - y > 4

5(2) - 7 > 4

10 - 7 > 4

3 > 4 - - - - Untrue

(8,4)

5x - y > 4

5(8) - 4 > 4

40 - 4 > 4

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6 0

2 years ago

The owner of two hotels is ordering towels. He bought 15 hand towels and 43 bath towels for his hotel in Livingston, spending a

coldgirl [10]

Answer:

The cost of each Hand towels is $5 and Cost of each Bath towel is $11.

Step-by-step explanation:

Let the Cost of Each hand Towels be $'x'$ .

Let the Cost of Each Bath Towels be $'y'$ .

Now Given:

15 hand towels and 43 bath towels for his hotel in Livingston, spending a total of $548.

So we can say that;

$15x+43y=548$

$15x=548-43y\\\\x=\frac{548-43y}{15}$ ⇒ Equation 1

Also Given:

99 hand towels and 62 bath towels for his hotel in Lancaster, spending $1,177.

So we can say that;

$99x+62y =1177$ ⇒ Equation 2

Substituting the value of 'x' from equation 1 in Equation 2 we get;

$99\frac{(548-43y)}{15}+62y=1177\\\\33\frac{(548-43y)}5+62y=1177\\\\\frac{18084-1419y}5+62y=1177$

Now taking LCM to make the denominator common we get;

$\frac{18084-1419y}5+\frac{62y\times5}{5}=1177\\\\\frac{18084-1419y}5+\frac{310y}5=1177\\\\\frac{18084-1419y+310y}{5}=1177$

$18084-1109y=1177\times5\\\\18084-1109y=5885$

Combining the like terms we get;

$18084-5885=1109y\\\\12199=1109y$

Dividing both side by 1109 we get;

$\frac{12199}{1109}=\frac{1109y}{1109}\\\\y=\$11$

Substituting the value of y in equation 1 we get;

$x=\frac{548-43y}{15}=\frac{548-43\times11}{15}=\$5$

Hence The cost of each Hand towels is $5 and Cost of each Bath towel is $11.

7 0

3 years ago