All categories

3 years ago

(50 points)(please make sure you know what you're doing)(absurd answers will be reported)

Mathematics

1 answer:

Tatiana [17]3 years ago

7 0

Answer:

see below

Step-by-step explanation:

Putting each equation in standard form is a good start.

1. Divide the first equation by 2. Divide the second equation by -5.

x +2y = 2
x - y = -1

2. Divide the first equation by 2; multiply the second by -1.

x +2y = 2
3x -y = 1

3. Divide the first equation by 2.

x +2y = 2
7x +5y = -1

4. Divide the first equation by 2.

x +2y = 2
7x -y = 5

5. Divide the first equation by 2.

x +2y = 2
7x -y = -1

You might be interested in

How many number of terms does 5p^2-2p+3r have?

Helga [31]

Answer:

3 terms

Step-by-step explanation:

5 $p^{2}$ - 2p + 3r

It has 3 terms

They are as follows:

5 $p^{2}$

-2p

and 3r

Hope this helps

plz mark as brainliest!!!!!

7 0

3 years ago

How to do slope intercept form again?!

earnstyle [38]

I don't know what is the correct answer

3 0

2 years ago

What is the following number in decimal form?

aleksley [76]

8.8 because you need to multiply 1.68 by 10 which is 16.8-8=8.8

6 0

3 years ago

a group friends ordered 3 burgers and 3 medium fries for a total of 20.25 .Another group of friends ordered 5 burgers and 8 medi

matrenka [14]

Answer: a burger is $5.25, fries are $1.50

b = burger, f = fries
3b + 3f = 20.25
5b + 8f = 38.25

First, solve for b in terms of f
3b = 20.25 - 3f
b = 6.75 -f

Then substitute that for b in the other equation to solve and get a numerical value for f.

5(6.75 -f) + 8f = 38.25
33.75 -5f +8f = 38.25
33.75 + 3f = 38.25
3f = 4.5
f = 1.5

Now substitute that in to get a numerical value for b
b = 6.75 - 1.5
b = 5.25

Checking the math:
3b + 3f = 20.25
3(5.25) + 3(1.5) = 15.75 + 4.5 = 20.25

5 0

2 years ago

Cedric's basketball team scored fewer than 76 points in their last game. Which of the following inequalities represents the numb

Lelechka [254]

Answer: $n$

Step-by-step explanation:

Although you did not provide the inequalities, the only inequality that can represent the number of points Cedric's basketball team scored in their last game is the one shown below:

Let's call the number of points Cedric's basketball team scored in their last game: $n$ .

You know that Cedric's basketball team scored fewer than 76 points in their last game. "Fewer than" means "less than", which is represented with the symbol < .

Therefore, you can represent the number of points Cedric's basketball team scored in their last game with the following inequality:

$n$

8 0

3 years ago