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3 years ago

X+6y=7 24y=-4x find x and y

Mathematics

2 answers:

antoniya [11.8K]3 years ago

7 0

Answer:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

y = − X/ 6 + 7/ 6

x = X − 7

Step-by-step explanation:

Y_Kistochka [10]3 years ago

6 0

No solution to this problem

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Which equation represents a line that passes through (–2, 4) and has a slope of ?

dimulka [17.4K]

Answer: the answer is y - 4 = (x + 2)

Step-by-step explanation:

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3 years ago

Read 2 more answers

a family has two cars. the first car has a fuel efficiency of 20 miles per gallon of gas and the second has a fuel efficiency of

nikklg [1K]

Car A consumes 25 gallon and car B consumes 15 gallon.

Step-by-step explanation:

Given,

The fuel efficiency of car A = 20 miles per gallon.

The fuel efficiency of car B = 15 miles per gallon.

In a week, two cars went 725 miles and consumed 40 gallons.

To find the consumption of each car in that week.

Let,

Car A consumed x gallon

Car B consumed y gallon.

According to the problem,

x+y = 40 ----- (1)

20x+15y = 725

or, 4x+3y = 145 -------- (2)

From (1) we get, x = 40-y

Putting the value of x in (2) we get,

4(40-y)+3y = 145

or, 160-4y+3y = 145

or, -y = 145-160

or, y = 15

From (1) we get, x = 40-15 = 25

Hence,

Car A consumes 25 gallon and car B consumes 15 gallon.

7 0

3 years ago

Solve for x*<br> 55°<br> x + 74<br> I<br> 54°

tiny-mole [99]

The Answer Is 180. :)

8 0

3 years ago

Angle math Hw. Pls help

timurjin [86]

Answer:

x = 45°

Step-by-step explanation:

We can tell that "x + 115" and 160° are vertically opposite angles, which means that they are equal. (Refer to image)

⇒ x + 115 = 160

⇒ x = 160 - 115

⇒ x = 45°

Learn more about vertically opposite angles: brainly.com/question/68367

<h3>Image:</h3>

6 0

2 years ago

Read 2 more answers

The H.C.F. of 3150 and a number is 42. Which of the following can be the number?

Eduardwww [97]

$2^{2} *3^{2} *5=4*9*5=4*45=180\\2^{2} *3^{2} *5^{2} =4*9*25=36*25=900\\2^{2} *3*7=4*3*7=4*21=84\\2^{2} *3^{2} *7=4*9*7=36*7=252\\$

$raspunsul, e, B, 900$

5 0

3 years ago