2 years ago

Is (1,8) a solution to this system of equations? 19x+3y=2 3x+y=11

Mathematics

1 answer:

pantera1 [17]2 years ago

7 0

Answer:

No (1,8) is not a solution to 19x+3y=2.

However, (1,8) is a solution to 3x+y=11.

Step-by-step explanation:

(1,8)

The one represents the x shown in each equation, the eight represents the y.

Substitute the one in for the x and the eight in for the y.

19x+3y=2

19(1)+3(8)

3x+y=11

3(1)+(8)

Next, solve the equation.

19(1)+3(8) = 43

3(1)+(8) = 11

As you can see, 43 does not equal 2.

But, 11 does equal 11.

You might be interested in

In the summer a large pool evaporates water at 15% per day. If the pool starts out with 25,700 gallons of water, which function

JulijaS [17]

Answer:

$y=25,700(0.85)^{x}$

Step-by-step explanation:

we know that

In this problem we have a exponential function of the form

$y=a(b)^{x}$

where

y ----> represent the pool’s loss of water

x ----> the number of days

a is the initial value

a=25,700 gal

b ----> is the base

r=15%=15/100=0.15

b=(1-r)=1-0.15=0.85

The function is equal to

$y=25,700(0.85)^{x}$

8 0

3 years ago

Type the number to the left of the rational number in the box to the point it represents on the number

svlad2 [7]

Answer:

I put the numbers first because it was easier for me to do but if it confuses you I can redo it

1. C

2. D

3. F

4. B

5. E

6. A

7 0

2 years ago

Please help :) <br> Due asap and thx!

Elenna [48]

Answer:

b . 6 is the length of the hypotenuse

8 0

2 years ago

A density curve for all the possible ages between 0 years and 100 years is in the shape of a triangle. What is the height of the

yawa3891 [41]

Hello there.

<span>A density curve for all the possible ages between 0 years and 100 years is in the shape of a triangle. What is the height of the triangle?

Answer: D</span>

8 0

3 years ago

Read 2 more answers

Dina bought 5 5/6 kg chocolate in her birthday . She have 1 2/3 kg to her parents and 3 1/3 kg to her friends how much was left

PSYCHO15rus [73]

1 2/3 + 3 1/3 = 5/1
5 5/6 - 5/1 = 5/6
5/6 was left

5 0

2 years ago