3x - 2y = -1 ; -x + 2y = -5

Answers

Answer 1

Answer: 1

−x+2y=−5;3x−2y=−1

Step: Solve−x+2y=−5for x:

−x+2y=−5

−x+2y+−2y=−5+−2y(Add -2y to both sides)

−x=−2y−5

−x

−1

=

−2y−5

−1

(Divide both sides by -1)

x=2y+5

Step: Substitute2y+5forxin3x−2y=−1:

3x−2y=−1

3(2y+5)−2y=−1

4y+15=−1(Simplify both sides of the equation)

4y+15+−15=−1+−15(Add -15 to both sides)

4y=−16

4y

4

=

−16

4

(Divide both sides by 4)

y=−4

Step: Substitute−4foryinx=2y+5:

x=2y+5

x=(2)(−4)+5

x=−3(Simplify both sides of the equation)

Answer:

x=−3 and y=−4

Step-by-step explanation:


Related Questions


I need help pleasee

Answers

Answer:

c is the answer

explination:

4*3 1/2=28/2

28/2 divided by 6 is equal to 7/3 or 2 1/3

URGENT DUE IN 10 MINUTES!

You have 8 cups of flour. It takes 1 cup of flour to make 24 cookies. The function C(f) = 24f represents the number of cookies, C, that can be made with f cups of flour. Which set of ordered pairs represent points on the graph of C(f) = 24f?

Answers

Answer:

c(0) = 24*0 = 0  

c(8) = 24*8 = 192  

Your range is [0,192]

Step-by-step explanation:

Answer:

You have 8 cups of flour it takes 1 cup of flour to make 24 cookies the function c(f)=24f

c represents the number of cookies

f represents the cups of flour

You have 8 cups of  flour, we can use only 0 to 8 cups of flour.

so domain f is 0 to 8 cups [0,8]

Now we find the range

1 cup of flour to make 24 cookies

So 8 cups of flour = 24* 8 = 192 cookies

using 8 cups you can make 192 cookies

So number of cookies is from 0 to 192

Range is [0,192

Step-by-step explanation:

Valeria drove 621 miles in 11.5 hours. What was her average speed in miles per hour?

Answers

Answer:

54 miles per hour.

Step-by-step explanation:

Just divided 621 by 11.5.

You would take 621 and divide that by 11.5 and you would get 54 mph I believe, if I am wrong please let me know so I can take down my answer! have a great and God blessed day! :D

chicken tenders or chicken nuggets

Answers

Answer:

i dont know which one to choose but chicken tenders

Answer:

Chicken tenders.

Step-by-step explanation:

Chicken nuggets are the gross consumption of organs including lungs and others mushed together and fried. In return kids run to it because (most) kids only eat gross stuff. This made the marketing campaign SKY ROCKET with kids everywhere trying to get a bite. FORCING their poor parents to get them that disgusting mush. And then dip it in ketchup. Which is NOT a fruit or veggie. (As the school system thinks they are a veggie.)

While chicken tenders are chopped off the chicken meat then rolled in bread crumbs. And then deep fried to make a crispy exterior with a delicious tender interior.  Without getting mushed together with other things.

Also you never know what they put in that chicken nugget since its mushed together ‍♀️.

What type of association would you expect between a persons age and hair length (positive/negative etc)

Answers

Answer:

:0 according to my calculations

Step-by-step explanation:

cheese

yo somebody help me on this i will mark you has brainlist c: plz

Answers

It should be 10.42 meters

You add the two numbers to get how much space is in between the two

Mrs. Roy bought pizza for $18.50. She wanted to tip her delivery driver 15%. How much did she give the driver as a tip?

Answers

Answer:

2.775 or if you want to say in terms of money it would be $2.78

Step-by-step explanation:

The angle of a quadrilateral are in the ratio 4:6:3 and it's fourth angle is 100. Find the other three angles of the quadrilateral

Answers

Step-by-step explanation:

Sum of angles in a quadrilateral = 360°

Sum of first 3 angles = 360° - 100° = 260°.

260° / (4 + 6 + 3) = 20°.

First angle = (20°) * 4 = 80°

Second angle = (20°) * 6 = 120°

Third angle = (20°) * 3 = 60°

The angles are 80°, 120° and 60°.

Answer:

Let the angles of the quadrilateral be 4x, 6x, and 3x

Sum of the interior angles of a quadrilateral is 360°.

According to the above problem,

[tex]4x + 6x + 3x + 100 = 360 \\ 13x = 360 - 100 \\ 13x = 260 \\ \boxed{x = 20}[/tex]

1st angle=4x=4×20=80°2nd angle=6x=6×20=120°3rd angle=3x=3×20=60°

Hence, the other three angles are 80°, 120° and 60°.

please help me! its about solving system by substitution

Answers

Answer:

Step: Solvex=4for x:

x=4

Step: Substitute4forxin2x+3y=14:

2x+3y=14

(2)(4)+3y=14

3y+8=14(Simplify both sides of the equation)

3y+8+−8=14+−8(Add -8 to both sides)

3y=6

3y

3

=

6

3

(Divide both sides by 3)

y=2

Answer:

x=4 and y=2

Step-by-step explanation:

Y=2

first you would plug x into the equation:
2(4)+3y=14 which then gives you:
8 + 3y =14
then you would subtract by 8 on both sides leaving you with :
3y=6
then you divide by 3 on both sides and get Y=2

0.545
Convert to fraction

Answers

Answer:

109/200

Step-by-step explanation:

Solve for p.
7(p- 9) = -34.3

Answers

Answer:

P=4.1

Step-by-step explanation:

Open the parenthesis on LHS.

7p-63=-34.3

Now isolate the variable.

7p=-34.3+63

7p=28.7

Simply Divide.

p=4.1

Gilbert is -17 meters under sea level every second(s) he gains 0.5 meters after how many seconds is he at sea level?

Answers

Answer:

He is at sea level after 34 seconds

Step-by-step explanation:

The height at sea level is given as 0 meters

So the change in height would be;

0- (-17) = 17 meters

There is a gain of 0.5 meters in 1 second

So, the time taken for it to gain 17 meters will be 17/0.5 = 34 seconds

help giving brainliest

Answers

Answer:

First you have to plot Bart's Garage's fee. Bart's equation is y = 30x + 20, so you would need to plot the points (0, 20) and (1, 50).

Lisa's base fee is the same, so her equation would have a + 20 at the end of it, but her hourly fee is higher. Therefore her hourly fee would be higher than 30. Her equation could be anything above 30, y = 50x +20 would work. The points for that graph are (0, 20) and (1, 70).

arrange the following values in order, starting with the smallest
0.7 5/8 66% three-quarters

Answers

Answer:

change all into decimals

0.7

5/8=0.625

66/100=0.66

5/8, 66%, 0.7

If Mark wants to pay off a loan in 5 years and the bank charges 10 percent interest, how much would Mark pay for the entire loan?​

Answers

Assuming the loan is 100 dollars
100 x .10 = 10
100 + 10 = 110

So he would pay 110 dollars

If the loan is 4560
4560 x .10 = 456
4560 + 456 = 5016

-3 |x-3|+3=6
Please hell!

Answers

Hai! So your answer for this would be no solution

Simplify: 80/15$$$$$$$$$$??

Answers

Answer:

16/3

Step-by-step explanation:

I hope this is correct and have a great day

Answer:

16/3 or 5.3333.. in decimal

Step-by-step explanation:

Divide 80 and 15 by 5

16/3

please hurry!

Jennifer borrowed $720 for a new TV. She has paid 3/4 of the debt. how much does she still owe?

Answers

Answer: yes the answer is 2:5 it isn’t right in just saying sum things

Step-by-step explanation:

720-540= 180 is the answer

6c – 7 + d + 4 – 6d combine like terms

Answers

Answer:

6c-5d-3

Step-by-step explanation:

6c-7+d+4-6d=6c-5d-3

(SHOW STEPS)
2(x-5) + 10

Answers

Answer:

2(x-5)+10

2x-10+10

2x is the answer

Step-by-step explanation:

Put these in descending order 0.68,0.9,0.81 and 0.86

Answers

Answer:

0.9 , 0.86, 0.81, 0.68

Step-by-step explanation:

i don't know if this has an explanation, you should just order them

0.9, 0.86, 0.81, 0.68


you just order them normally.
don’t be fooled by the fact that 0.9 doesn’t have another number- it means 0.90

2(2)+5(3)^0
----------------------








Answers

Answer: 1

Step-by-step explanation: anything to the power of 0 is 1 (except 0 to the power of 0 is undefined)

I think the correct is 19. Not sure but don’t make me brainlist

write 2x + y= 9 in the form of y=mx + b​

Answers

Step-by-step explanation:

2x+y=9 ( y=mx+b)

y=-2x+9

sorry...if its wrong

megan is trying to find the length of the segment using the Pythagorean Theorem


Part A : megan made one mistake in her work , which caused her to get the wrong answer what did she do wrong?

Part B : Calculate the correct length of the segment

Answers

Answer:

10

Step-by-step explanation:

To obtain the length of the segment :

a² + b² = c²

a = 8 ; b = 6

8² + 6² = c²

64 + 36 = c²

100 = c²

Square root of both sides :

Sqrt(100) = sqrt(c²)

10 = c

Mistake in the solution is that 6² = 36 and not 12

I need help some help with this

Answers

The answer is 3u over 5. 3u/5

PLS HELP ME ON THIS ASAP!!!!​

Answers

Answer:

a = upward

vertex = -2,4

Step-by-step explanation:

i will answer the rest under comments

PLS HELP I HAVE TO TURN THIS IN IN FIVE MIIN!!
Tickets to a play cost $4 in advance and $5 at the door. The theater club president wants to raise at least $400 from the ticket sales. If the club sells 40 tickets in advance, what is the least number of tickets the club needs to sell at the door to reach the president’s goal?

Answers

Answer:48

Step-by-step explanation:

Answer:

48 tickets

Step-by-step explanation:

so multiply the 4 and 40 to get 160, then subtract that from 400. divide by the 5 and then u get 48

-2 3/4 - 4 7/10 + 2.6 - (1.9) I need it asap as a decimal​

Answers

Answer:

The answer is -6.75

50 POINTS PLEASE HELP ASAP IF CORRECT WILL GIVE BRAINLYIST

Answers

Answer:

1: (5,-2) 16

2: (-2,2) √3

3: (-14,21) 2

4: (-7,10) √8

5: (2/3,17) √5

Step-by-step explanation:

Can someone help? Don’t need any working out

Answers

volume= 301.6
curved surface area= 188.5
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