2 years ago

Which ordered pair is a solution to the system of linear equation? 2x+ 3y=6 -3x+5y=10

Mathematics

1 answer:

allochka39001 [22]2 years ago

6 0

Answer:

Step-by-step explanation:

2x + 3y = 6________( 1 )

-3x + 5y = 10_______( 2 )

( 1 ) × 3 ---- 6x + 9y = 18_____( 3 )

( 2 ) × 2 ---- -6x + 10y = 20_____( 4 )

$(4) + (3) \\ 6x + 9y + ( - 6x + 10y) = 20 - 18 \\ 6x + 9y - 6x - 10y = 2 \\ y = 2$

y = 2 ,

$2x + 3y = 6 \\ 2x + 3(2) = 2 \\ 2x + 6 = 2 \\ 2x = 2 - 6 \\ 2x = - 4 \\x = \frac{ - 4}{2} \\ x = ( - 2) \\$

You might be interested in

Optimization-

pishuonlain [190]

Do you want a proof or just the answer?
The answer is: the square (2.5x2.5).

5 0

3 years ago

Using the given equation find the missing coordinates of the points and then find the slope of the line for each equation y=3.5x

dangina [55]

Y=3.5x+4
a) 5=3.5x+4, 3.5x=1, x=1/3.5=2/7
b) y=3.5*10+4=35+4=39

5 0

3 years ago

If b= 7, what is 1/3(2b+10)? Please help

goblinko [34]

Answer:8

Step-by-step explanation:

First, substitute 7 into the equation for b:

1/3(2x7+10)

Now, simplify using the order of operations:

1/3(14+10)

Then:

1/3 (24)

And you arrive at your answer:

3 0

3 years ago

Read 2 more answers

Students are selling raffle tickets for a school fundraiser. They collect $25 for every 10 raffle tickets sold. Rain equation th

Free_Kalibri [48]

Answer: m= $25/10 r

Step-by-step explanation:

Let m= money

r= raffle ticket

Then according to the statement

m= $25 for 10 tickets

so 10 tickets= $25

Or the equation goes,

m= $25/10 r

7 0

3 years ago

James had 42 dollars. He bought his sister a gift that costs x dollars. How much money does james have now, in terms of x

nata0808 [166]

Answer:

42-x = James' money now

Step-by-step explanation:

5 0

3 years ago