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mrs_skeptik [129]
3 years ago
9

Solve the system of linear equations by elimination. Check your solution.

Mathematics
2 answers:
melisa1 [442]3 years ago
8 0
The answer is
(x,y)=(3,-4)
horsena [70]3 years ago
8 0

Answer:

x=3, y=-4. (3, -4).

Step-by-step explanation:

3x-17=2y

5y=-4x-8

-------------

3x-2y=17

-4x-5y=8

--------------

4(3x-2y)=4(17)

3(-4x-5y)=3(8)

----------------------

12x-8y=68

-12x-15y=24

------------------

-23y=92

y=92/-23

y=-4

3x-17=2(-4)

3x-17=-8

3x=-8+17

3x=9

x=9/3

x=3

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harina [27]

Answer:

5-√9/4    4-3√-16    3+2√-9➗7

Step-by-step explanation:


5 0
3 years ago
your family goes to a restaurant for dinner. there are 6 people in your family. some order the chicken dinner for $14.80 and som
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(14.80)(5) = 74

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5 family members orders chicken, and only one orders steak.
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3 years ago
Please help! Which of the two companies would be more likely to release this graph to consumers?
emmasim [6.3K]

Answer:

Option B, Company B

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7 0
4 years ago
A cash register contains $20 bills and $100 bills with a total value of $1460. If there are 21 bills total, then how many of
ella [17]

The register contains 8 number of $20 bills and 13 number of $100 bills.

<h3>What is termed as the linear equation in two variables?</h3>
  • A linear equation in two variables is one that is written in the form ax + by + c=0, where a, b, and c are real numbers as well as the coefficients of x and y, i.e. a and b, are not equal to zero.

Let 'x' be the of $20 bills.

Let 'y' be of $100 bills.

Total bill = 21

x+y = 21

y = -x+21 ......eq1

Now,

Total price = $1460.

20x + 100y = 1460

Put value of y from eq 1.

20x + 100(-x+21) = 1460

20x-100x+2100=1460

-80x=-640

x=8  (Number of $20 bill)

And,

-8+21=13

y=13 (Number of $100 bills)

Thus, the register contains 8 number of $20 bills and 13 number of $100 bills.

To know more about linear equation, here

brainly.com/question/4074386

#SPJ1

The complete question is-

A cash register contains $20 bills and $100 bills with a total value of $1460. If there are 21 bills total, then how many of  each does the register contain?

8 0
2 years ago
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