All categories

3 years ago

Is (1, 2) a solution to this system of equations? Show work!

Mathematics

1 answer:

Leto [7]3 years ago

5 0

Answer:

(1, 2) is a solution to this system of equations

Step-by-step explanation:

Plug in (1, 2) into each equation

17x + y = 19

17(1) + 2 = 19

17 + 2 = 19

19 = 19 ----------->YES

8x + 5y = 18

8(1) + 5(2) = 18

8 + 10 = 18

18 = 18 ------------------->YES

Answer:

(1, 2) is a solution to this system of equations

You might be interested in

An examination started 12.50 pm and lasted for 2 and half hours. at what time did it end

yulyashka [42]

Answer:

3: 20 pm

$= > hours = 12 and 2 + 1hour = > 3 \: pm \\ minutes = 30 - 10 = 20 \: minutes \\ it \: ended \: at \: 3 : 20 \: pm$

3 0

3 years ago

Read 2 more answers

Mr. Mueller is hungry, but he can't leave the fire station to get food. He's

marin [14]

Answer:

$3.97x + $10 < (or equal to) $25

Step-by-step explanation:

8 0

2 years ago

Read 2 more answers

Find the perimeter of triangle ABC.

Harlamova29_29 [7]

By definition, the perimeter of the triangle is the sum of its sides.
We must then use the formula of distance between points:
$d = \sqrt{(x2-x1) ^ 2 + (y2-y1) ^ 2}$
We now look for the longitus for each of the sides:

For L1:
$L1 = \sqrt{(6-2)^2 + (6-2)^2}$
$L1 = \sqrt{32} 
$
$L1 = 4\sqrt{2}$

For L2:
$L2 = \sqrt{(7-2)^2 + (-3-2)^2}$
$L2 = \sqrt{50}$
$L2 = 5\sqrt{2}$

For L3:
$L3 = \sqrt{(7-6)^2 + (-3-6)^2}$
$L3 = \sqrt{82}$

Then, the perimeter is given by:
P = L1 + L2 + L3
Substituting values we have:
$P = 4\sqrt{2} + 5\sqrt{2} + \sqrt{82} 

P = 9\sqrt{2} + \sqrt{82}$

Answer:
the perimeter of triangle ABC is:
none of the above.

5 0

3 years ago

Read 2 more answers

What is the reason for each step in the solution of the equation? 18−2x=4x

Reika [66]

In order to solve an equation for a certain variable, you should isolate that variable on one side of the equation and leave all the other terms on the other side on the equation.
The, you solve to get the value of the variable.

The equation we have here is:
<span>18−2x=4x
First, we need to isolate the terms containing the "x" on one side of the equation. To do this, we will add 2x to both sides of the equation:
</span><span>18−2x+2x=4x+2x
18 = 6x
Now, we need to get the value of the "x". To do this, we will simply divide both sides of the equation by 6:
18/6 = 6x/6
3 = x .............> This is the solution of the equation</span>

3 0

3 years ago

Read 2 more answers

How do you do monomial

iris [78.8K]

Answer:

Multiplying a Monomial by a Monomial. When multiplying a monomial by a monomial, we multiply the coefficients together and tack on the variables at the end (usually in alphabetical order). When multiplying two of the same variables, add the exponents. Remember that the exponent on x is an invisible 1.

Step-by-step explanation:

Hope this helps

4 0

3 years ago

Is (1, 2) a solution to this system of equations? ****Show work!****

Is (1, 2) a solution to this system of equations? Show work!