2x-3y=14
2x-y=-10
How you do this ?

Answers

Answer 1

Answer: $2x-3y=14\ / \cdot(-1)\n2x-y=-10\n\n-2x+3y=-14\n2x-y=-10\n--------\n3y-y=-14-10\n2y=-24\ /:2\ny=-12\n\n2x-y=-10\n \Rightarrow\ \ \ 2x-(-12)=-10\ \ \ \Rightarrow\ \ \ 2x+12=-10\ \ \ \Rightarrow\ \ \ 2x=-22\ /:2\n\Rightarrow\ \ \ x=-11\n\n \left \{{\big {x=-11} \atop \big {y=-12}} \right.$

Answer 2

Answer: Hello there !

$2x-3y=14 \n 2x-y=-10 \n \n2x-3y=14 \n 2x=y-10 \n \n y-10-3y=14 \n -10-14=-y+3y \n -24=2y \n \boxed{-12=y} \n \n 2x-y=-10 \n 2x-(-12)=-10 \n 2x=-10-12 \n 2x=-22 \n \boxed{=-11}$

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A company makes a profit of $1.38 million. This is $2.54 million more than last year. Write and solve an equation to find the profit p (in millions of dollars) last year.

Answers

The equation is P = 1.38 - 2.54. And there is a loss of 1.16 million last year.

What is Algebra?

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.

A company makes a profit of $1.38 million. Let P be the profit last year. Then the equation is given as,

P = 1.38 - 2.54

Simplify the equation, then we have

P = 1.38 - 2.54

P = -1.16 million

The equation is P = 1.38 - 2.54. And there is a loss of 1.16 million last year.

More about the Algebra link is given below.

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well, if this year they made 1.38 million
and last year they made 2.54 million LESS
then p=1.38 million-2.54 million
p= -1.16 million dollars in LOSSES last year

Complete the equation of the line through (-9,-7) and (-6,-3)

Answers

The equation of the line through (-9, -7) and (-6, -3) is $y+3=(4)/(3)(x+6)$

Solution:

Given, two points are (-9, -7) and (-6, -3)

We have to find that a line that passes through the given two points.

First let us find the slope of the line that passes through given two points.

The slope of the line "m" is given as:

$\mathrm{m}=(y_(2)-y_(1))/(x_(2)-x_(1))$

$\text { where, }\left(x_(1), y_(1)\right) \text { and }\left(x_(2), y_(2)\right) \text { are two points on line. }$

So slope of our line $=(-3-(-7))/(-6-(-9))=(-3+7)/(-6+9)=(4)/(3)$

Now, let us find the line equation using point slope form:

$\mathrm{y}-\mathrm{y}_(1)=\mathrm{m}\left(\mathrm{x}-\mathrm{x}_(1)\right) \text { where } \mathrm{m} \text { is slope and }\left(\mathrm{x}_(1), \mathrm{y}_(1)\right) \text { is point on the line. }$

By substituting the values we get,

$\text { Then, line equation } \rightarrow y-(-3)=(4)/(3)(x-(-6))$

$y+3=(4)/(3)(x+6)$

Hence, the line equation is $y+3=(4)/(3)(x+6)$

josh watches 720 televisions shows in one year. if he watches the same number of shows each month, how many shows does he watch in 5 months. is that a division problem or multiplication problem.

Answers

In 5 months Josh watched 300 television shows, and it is multiplication problem.

What is Unitary Method?

The unitary technique involves first determining the value of a single unit, followed by the value of the necessary number of units.

For example, Let's say Ram spends 36 Rs. for a dozen (12) bananas.

12 bananas will set you back 36 Rs. 1 banana costs 36 x 12 = 3 Rupees.

As a result, one banana costs three rupees. Let's say we need to calculate the price of 15 bananas.

This may be done as follows: 15 bananas cost 3 rupees each; 15 units cost 45 rupees.

Given:

Josh watches 720 televisions shows in one year.

In onemonth Josh watches = 720/12

= 60 shows

and, in 5 month Josh watches

= 60 x 5

= 300 television shows.

Learn more about Unitary Method here:

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720÷12=60 then times 60 by 5 months 60·5=300 tv shows in 5months

Darcy wants to buy a new skirt. The price of the skirt is $35.00 and 7% sales tax will be added to the price. Darcy has $40.00 to spend. How much money will Darcy have left after paying for the skirt and the sales tax?

Answers

The value of the skirt with a tax is
$35.00 + ($35.00 x 0.07) = $37.45
He has $40.00 and his change will be
$40.00 - $37.45 = $2.55

8x-2=-9+7x can you do it step by step

Answers

In going to move constants to one side and variables to another by adding and subtracting.

8x -2 + 2 - 7x = -9 + 2 + 7x -7x

8x -7x = -9 + 2
Now solve

X = -7

well u move all the variables to the left side, so 8x is already in the left but 7x isnt so you move 7x to the left side of the equal sign which makes 7x to -7x.

8x-2-7x=-9

you move the -2 to the right side of the equal sign which becomes +2.

8x-7x=-9+2

you do the math which 8x-7x=1x and -9+2=-7

so.... 1x=-7

and x=-7. Make sure to always combine like terms.

To make sure it is correct replace the x with the -7 and

8(-7)-2=-9+7(-7)

-56-2=-9-49

-58=-58

so x= -7

What is
A= 3000(1+.036/12)^72
Algebra 2 compound interest