5x - 2y = -26
-7x + 4y = 40
Show your work?​

Answers

Answer 1

Answer:

x = -4, y = 3

Step-by-step explanation:

In one equation (let's use the top one), solve for one of the variables (let's solve for y first).

5x - 2y = - 26 --> -2y = -5x - 26 --> y = (5/2)x + 13

Now, substitute ((5/2)x + 13) in for y in the second equation.

-7x + 4((5/2)x + 13) = 40 --> -7x + 10x + 52= 40 --> 3x = -12 --> x = -4

Then, subtitute that in to one of the equations.

5(-4) - 2y = -26 --> -20 - 2y = -26 --> -2y = -6 --> y = 3


Related Questions

What is the solution to the equation?
(x - 2)^1/2 + 4 = x
A. -3 and -6
B. 3 and 6
C. -3
D. 6

Answers

Answer: D
1/2x-1+4=x
1/2x-x=-3
-1/2x=-3
x=6

Answer:

(D). 6

Step-by-step explanation:

[tex]\sqrt{x-2}[/tex] + 4 = x and x ≥ 2

Let analyze the answer's choices

(A). Does not satisfy domain

(B). [tex]\sqrt{3-2}[/tex] + 4 ≠ 3

(C). Does not satisfy domain

(D). √(6 - 2) + 4 = 6 ⇒ x = 6 is the answer.

PLEASE HELP I DONT WANT TO FAIL

Answers

Answer : side pv is equivalent to side ct

$24 lunch and 15% tip

Answers

Answer:

Total: 24.00

Tip: 3.60

Total: 27.60

Answer:

Step-by-step explanation:

27.60

Kinsley can illustrate 9 story book pages in 3 hours. How many pages can she
illustrate per hour?
Hint: Make a W.O.N. table to solve.
o A) 27 pages
B) 9 pages
o C) 1 page
D) 3 pages

Answers

Answer:

3 pages

Step-by-step explanation:

because if she reads 9 pages in 3 hours if you multiply each answer by 3 you should be able to find the right answer

Julie buys a new shirt. The original price of the shirt is $35.00, but it is on sale for 25% off. There is a 7% tax on the shirt. How much will Julie pay for the shirt?

Answers

Answer: $24.08

Step-by-step explanation: 25% off $35.00 is $22.50

and adding 7% tax which equals $1.50

so it adds up to 24.08

m+4/3=r solve for m

Answers

Answer:

m=r-4/3

Step-by-step explanation:

Put 4/3 on the other side of the equals sign and change the sign

Hope this helped, Have a Great Day!!

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[tex]m + \frac{4}{3} = r \\ [/tex]

Subtract sides - 4 / 3

[tex]m + \frac{4}{3} - \frac{4}{3} = r - \frac{4}{3} \\ [/tex]

[tex]m = r - \frac{4}{3} \\ [/tex]

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which of the following terminating decimals is equivalent to -1 3\4

Answers

Answer:

Step-by-step explanation:

-1 3/4 = -1.75.

In the figure tw =3x+5 wx =10 and tx =5x-9

Answers

Answer:

Value of x = 12 unit

Step-by-step explanation:

Given:

tw = 3x+5

wx = 10

tx = 5x-9

Find:

Value of x

Computation:

tw + wx = tx

3x + 5 + 10 = 5x - 9

3x + 15 = 5x - 9

2x = 24

x = 12

Value of x = 12 unit

What is the image of the point
(
1
,

4
)
(1,−4) after a rotation of
18
0

180

counterclockwise about the origin?

Answers

Answer:

The image of point (1,-4) after a rotation of 180° counter clockwise about the origin is: (-1,4)

Step-by-step explanation:

Rotation means that a point is being moved in clockwise or counterclockwise direction with some angle.

The rotation can be done in 90, 180, 270 degrees.

Given point is:

(1,-4)

When a point (x,y) is rotated 180° counter clockwise its coordinates become (-x,-y) the negative of original point.

So for the given point the coordinates will become (-1,4)

Hence,

The image of point (1,-4) after a rotation of 180° counter clockwise about the origin is: (-1,4)

plsss look at the picture and answer the questions ​

Answers

Answer:

1A 60. B 100. C. 80. 2. 84 / 75 / 77

1.) 50
2.)100
3.)80
Question 2
Circle 77

It takes Mark 1 hour to get to work each day. Mark drives from home 20 minutes to the train station at a constant rate of 42 mph. He then takes the train, traveling at a constant 60 mph, the remaining distance to work. How far does Mark live from his work place? A. 108 mi. B. 80 mi. C. 62 mi. D. 54 mi.

PLEASE HELP QUICK

Answers

Answer:D.54

Step-by-step explanation: it takes 20 minutes in the car which is 1/3 of an hr so 42/3= 14 then that leaves 40 minutes left for the train which is 2/3 of 60 and 60/3=20 and 20x2= 40 so 40+14=54

Answer:

D. 54

Step-by-step explanation:

Give the guy above brainliest

Micah's Family ate some of the two pies that he baked. which number represents the amount of pies that is left​

Answers

Answer:

The answer is 6/8

Step-by-step explanation:

6/8 is the only logical answer because you need to have an answer that is less than one, 8/6 evens out to 1 1/3, 6/2 evens out to 3, and 8/4 evens out to 2. 6/8 is the only fraction that is less than one.

Answer:

its 6/8

Step-by-step explanation:

Can someone help me find the measure of each angle in the triangle?

Answers

Answer:Remember -- the sum of the degree measures of angles in any triangle equals 180 degrees. ... So, the measure of angle A + angle B + angle C = 180 degrees. ... If a triangle is equilateral, what is the degree measure of each of its angles?

Step-by-step explanation:

Answer-

the sum of the degree measures of angles in any triangle equals 180 degrees. ... So, the measure of angle A + angle B + angle C = 180 degrees. ... If a triangle is equilateral, what is the degree measure of each of its angles?

Elizabeth goes to a restaurant where her bill comes to $18.50. She leaves the server a 22% tip. What is the total cost of going to the restaurant?

Answers

Answer:

22.57

Step-by-step explanation:

multiply 18.50 by .22 and add it to 18.50

Answer:

Elizabeth will pay $22.57 in total at the restaurant.

Step-by-step explanation:

First, you need to find the tip, which is 22% of the bill. 22% of 18.5 is 4.07. Then you add that number to the bill and get 22.57.

Help pls! A room is 12 feet long and 10.5 feet wide. A scale model of the room is 3.5 feet wide. What is the area of the scale model?


A. 10.3 square feet

B. 14 square feet

C. 122.5 square feet

Answers

It should be B I think

Dorian decided his favorite food is Sour Patch Kids,and that was going to eat them every day.He eats 20 Sour Patch Kids in half a day. What is the constant of proportionality?

Answers

Answer:

The constant of proportionality is 40 sour patch kids per day

Step-by-step explanation:

Here, we want to find the constant of proportionality

From the question, we are told that he eats 20 sour patch kids in half a day

what this mean is that he will eat 20 * 2 = 40 sour patch kids in a day

The constant of proportionality is thus 40 sour patch kids per day

What is the value of a?

Answers

Answer:

a = 43°

Step-by-step explanation:

The sum of the 3 angles in a triangle = 180°

Sum the 3 angles and equate to 180, that is

a + 8 + 2a + 43 = 180

3a + 51 = 180 ( subtract 51 from both sides )

3a = 129 ( divide both sides by 3 )

a = 43

8. A yard is closest in distance to a
a. kilometer.
b. centimeter.
C. meter.
d. millimeter.

Answers

Answer:

meter

Step-by-step explanation:

Answer:

Meter

Step-by-step explanation:

Kilometer is too long

Centimeter is too shot

Millimeter is way too short

Meter is the closest to yard

1 meter equals 1.09361 yards

Solve the problem involving consecutive integers.
If three times the smaller of two consecutive integers is added to four times the larger, the result is 109. Find the smaller integer.
A. 14 B. 45 C. 15 D. 16

Answers

Answer:

c.15

Step-by-step explanation:

smaller integer=x

larger integer=x+1

3x+4(x+1)=109

3x+4x+4=109

7x+4=109

7x=105

x=105/7

x=15

check:

3(15)+4(15+1)=109

45+64=109

PLEASE help me I’m failing !! Leonard wants to buy some snacks at the FFA snack machine. He has $5.00 on
him and he wants to buy 2 beef sticks (.50 apiece), 2 crackers and cheese (.75
apiece) and 2 chocolate milks ($1.00 apiece). How much change will he get back?

Answers

Answer:

He will have 0.50 chage back

Step-by-step explanation:

Answer:

.50 cents

Step-by-step explanation:

2 beef sticks price will add to $1. 2 crackers of cheese add to $1.50. And 2 chocolate milks add to $2. Now add them all and you will get .50 cents

Superman needs to save Lois from the clutches of Lex Luthor. After flying for 7 seconds, he is 1708 meters
from her. Then at 11 seconds he is 1484 meters from her.
What is Superman's average rate?
meters per second
How far does Superman fly every 13 seconds?
meters
How close to Lois is Superman after 24 seconds?
meters

Answers

Step-by-step explanation:

1) rate = ( 1484 - 1708) ÷ ( 11 - 7) = - 56 m/ s

2) rate × 13 = - 56 × 13 = - 728 m per 13 s

3) rate = - 56

t = 24 s

d = - 56 × 24 = 1344 m

whole distance = 2100

7 × 56 = 392

and he flay till 1708 then whole distance = 392 + 1708

so the remaining distance between him and her

2100 - 1344 = 756 m

John's dog slept for 3 hours. If the dog snored every 13 1 3 13 1 3 of an hour, how many times did he snore? Play media comment. Group of answer choices 9 times 1 time 12 times

Answers

Answer:

9 times

Step-by-step explanation:

A dog snores 1/3 of an hour

60 minutes = 1 hour

Hence,

1/3 of 60 minutes = 20 minutes

Hence, every 20 minutes, the dog snores

This means in 1 hour, the dog snores 3 times

The dog slept for 3 hours

Hence,

1 hour = 3 times

3 hours = x

Cross. Multiply

x = 3 × 3 times

x = 9 times

The dog snores 9 times

HELP ME PLEASE!!!!!!!!!!!!

Answers

Answer: linear

Step-by-step explanation: cus when u connect the points it forms a straight line

Linear is the awnser CHUJVCFHHVF

Sam scored 10 points. This was double the number of points he scored in the first game. Which equation can be used to find, x, the number of points Sam scored in the first game?
a.x−2=10
b.2x = 10
c.x + 2 = 10
d.x/2=10

Answers

Answer:

b is the answer of this puestion

please help... please need help!!!

Answers

Answer:

2 gallons maybe?

Step-by-step explanation:

It takes Michaels 3 hours to drive 180 miles. At that rate, how long does it take to drive 60 miles?​

Answers

Answer:

if your destination is 180 miles away and you drive 60 mph how long does the trip take? So it takes 3 hrs.

Step-by-step explanation:

Find the unit rate. Round your answer to the nearest hundredth.
357 miles in 5 hours
miles per hour

Answers

Answer:

71.4 mph

Step-by-step explanation:

357/5

71.4

Answer:

71.40

Step-by-step explanation:

357/5= 71.4 or 71.40 to the nearest hundredth.

2) If x+y=6 and xy=5 find x-y?​

Answers

Answer:

x - y = ± 4

Step-by-step explanation:

Given

x + y = 6 and xy = 5

To find

x - y

Solution

(x - y)² = (x + y)² - 4xy = 6² - 4*5 = 36 - 20 = 16 = 4²(x - y)² = 4²x - y = ± 4

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Here are recipes for two different banana cakes. Information for the first recipe is shown in the table.
1st Recipe: y = 1.5x
2nd Recipe: y = 7/4x
If you used 4 cups of sugar, how much flour does each recipe need?

a. First: 2 cups, Second: 8 cups
b. First: 7 cups, second: 6 cups
c. First: 4 cups, second: 2 cups
d. First: 6 cups, Second: 7 cups

Answers

Step-by-step explanation:

H hvuvuvuvuvuv9yvig kg

Please Help Me with this Step by step:
12-(3x+13)=0

Answers

Distributive property
12-3x-13 = 0
Combine like terms
-1-3x = 0
-3x = 1
Divide by -3
x = -1/3
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