2 years ago

Solve the system of equations. 7y + 10.x = -11 4y - 3x = -15

Mathematics

1 answer:

Sidana [21]2 years ago

7 0

Answer:

x= 1

y= -3

Step-by-step explanation:

multiply them to get common factor for y or x:

3(7y+10x=-11)

10(4y-3x=-15)

21y+30x=-33

40y-30x=-150 x's cancel out so solve for y

61y = -183

/61 /61

y = -3 insert y into either equation and solve for x

4(-3) -3x=-15

x = 1

You might be interested in

If the length of room is four times the height and breadth is twice of its height and the volume of the room is 512 m^2 find its

lisov135 [29]

$Let \: x \: (x>0) \: be \: the \: height \Rightarrow the \: width, length: 2x,4x \\ Volume:V=hwl = 512 \\ \Leftrightarrow x2x4x = 512 \\ \Leftrightarrow 8{x }^{3} = 512 \\\Leftrightarrow {x}^{3} = 64 \\ \Leftrightarrow x = 4 \\ \Rightarrow The \: height \: is \: 4 \: m, the \: width \: is \: 8 \: m$

8 0

3 years ago

Which of these systems has one unique solution?

Shtirlitz [24]

Answer:

Step-by-step explanation:

A,B,and C can not solve. because they have wrong answers.

6 0

3 years ago

You are dealt two cards successively without replacement from a standard deck of 52 playing cards. find the probability that the

Alenkasestr [34]

We have four two cards in 52 cards and four ten cards in the same playing cards
to get our first four cards we choose one from the whole set of 52 cards
but to get the next card with ten we choose them out of 51 because we took the first card with value two and we have not replaced it
this gives us
4/52*4/51=0.006

7 0

3 years ago

Graph the line, two points to graph Y=4/3x-y

defon

I hope this helps u
And others if ur searching for

4 0

2 years ago

Solve the equation 36w = 16w + 24

Umnica [9.8K]

=24/20 thus the answer is 1.2

4 0

3 years ago

Read 2 more answers