All categories

2 years ago

2x+3y=15 x+y=6 find values for x and y

Mathematics

1 answer:

MatroZZZ [7]2 years ago

8 0

Answer:

(x, y) = (3, 3)

Step-by-step explanation:

Subtract double the second equation from the first.

(2x +3y) -2(x +y) = (15) -2(6)

y = 3 . . . . . . . . simplify

Use the second equation to find x.

x = 6 -y = 6 -3 = 3

The values of x and y are both 3.

You might be interested in

Solve Diego's equation: x + 35 =180 x =

Irina18 [472]

Answer:

x=145

Step-by-step explanation:

simply subtract 35 from both sides, so you can isolate the variable. once done, you will get that x=145

3 0

3 years ago

Read 2 more answers

If the shaded cross sections of the solids have the same area, which of the following corresponds to the value of a: the side le

Nikolay [14]

Answer:

$4\sqrt{\pi}$

Step-by-step explanation:

The cross section of a sphere is a circle with area $\pi r^2$ , where radius is given as 4
The cross section of the cube is a square with area $a^2$ , where a is side length of square

The circle area = the square area. Thus we have:

$\pi r^2 = a^2 \\\pi(4)^2=a^2\\16\pi=a^2\\\sqrt{16\pi}=a\\ a=\sqrt{16} \sqrt{\pi} \\a=4\sqrt{\pi}$

6 0

3 years ago

Read 2 more answers

A kennel is moving 160 dogs to a new facility each dog has its own crate the facility manager rents 17 trucks each truck holds 9

mina [271]

This will only be able to hold 153 dogs in total. He will need 1 additional truck to hold the last 7 dogs.

4 0

3 years ago

What graph represents the following piecewise defined function? <br> g(x)={x^2, x<0, 1/2x, 0 4

Svetlanka [38]

Answer:

The Answer above The Image

Step-by-step explanation:

Thanks…………………

3 0

2 years ago

Solve the following formula for t. F=J+Jrt

kherson [118]

First, we separate all instances of t by subtracting J from both sides:

F = J + Jrt
F - J = Jrt

Then, we separate the t by dividing both sides by Jr:

$\frac{f - j}{jr} = t$
Therefore, t is equal to (F - J) ÷ Jr

8 0

3 years ago