What is the solution to the system of equations below? {2y=x+63x=y+7 (5, 4) (20, 13) (13, 20) (4, 5)

Answers

Answer 1

Answer:

(4,5)

Step-by-step explanation:

Let's solve your system by substitution.

2y=x+6;3x=y+7

Step: Solve2y=x+6for x:

2y=x+6

2y+−x=x+6+−x(Add -x to both sides)

−x+2y=6

−x+2y+−2y=6+−2y(Add -2y to both sides)

−x=−2y+6

−x

−1

=

−2y+6

−1

(Divide both sides by -1)

x=2y−6

Step: Substitute2y−6forxin3x=y+7:

3x=y+7

3(2y−6)=y+7

6y−18=y+7(Simplify both sides of the equation)

6y−18+−y=y+7+−y(Add -y to both sides)

5y−18=7

5y−18+18=7+18(Add 18 to both sides)

5y=25

5y

5

=

25

5

(Divide both sides by 5)

y=5

Step: Substitute 5 for y in x=2y−6:

x=2y−6

x=(2)(5)−6

x=4(Simplify both sides of the equation)


Related Questions

Ariel is decorating a wall for her niece's birthday. She uses 3 sunflowers for every 5 roses. When she finished decorating, she used a total of 21 sunflowers. How many roses did Ariel use to decorate the wall for her niece's birthday

Answers

Answer:

divide 21 by 3=7

7 x 5  = 35

Answer = 35 roses

Step-by-step explanation:

James was working on his school homework for 2 hours. He spent 1/3 of this time working on math, and 1/4 of the rest of the time doing reading. How many minutes did James do math?

Answers

2 hours = 120 minutes

120/3 = 40

= 40 minutes

please simplify 5(x-1)

Answers

Answer:

5x-5

Step-by-step explanation:

Just use distribuative property

TRUE

OR FALSE

OR NOT ENOUGH INFORMATION



WORTH 50 POINTS AND BRAINLIST

Answers

Answer:

true

Step-by-step explanation:

please the second probability is true

Answer: I believe it's False

Hope this helps love<3

Please help me with this..!

Answers

Answer:

opposite sides are congruent for first under given

AD=AD for reflective property of congruency

next one under given is definition of perpendicular lines

and last box is acd=bdc

Step-by-step explanation:

Martin has a bag of marbles. He removed one marble at random, recorded the color and then placed it back in the bag. He repeated this process several times and recorded his results in the table. Find the experimental probability of drawing each color.

Red: 12
Blue: 10
Green: 15
Yellow: 13

What are two different ways you could find the experimental probability of the event that Martin does not draw a red marble?

Answers

Answer:

38/50 ; or 19/25

Step-by-step explanation:

One way could be that you add all the marbles together to get your total marbles; 12 + 10 + 15 + 13 = 50.

Then you add all the colours expect red; 10 + 15 + 13 = 38.

Which would give me 38/50; which simplifed would be 19/25

Select the Correct Answer.
Consider the functions f and g
f(x) = |2x+9|

(graph attached)

What is the value of g(f(-5))?
A. 5
B. -5
C. 0
D. -1

Answers

Answer:

I Guessed postive  5 and got it right

Step-by-step explanation:

So the answer is 5

NOT -5

Do the brainly bois got me?

Answers

Answer: It think that 3 is adjacent to 5

Chloe works for an estate agent. Her monthly pay is made up of a salary of £1,600 and a bonus of £300 if she sells at least 2 properties. She is also paid 6% of the agency's annual profit at the end of the year. Last year the agency had an income of £436,000 and costs of £380,000. There were 4 months in which Chloe sold 2 or more properties. What was Chloe's total pay last year?

Answers

Answer:

22,860

Step-by-step explanation:

she makes 1600 per month x 12 months = 19,200

she sold more than 2 properties during the year so add 300

company profit = 436,000 - 380,000

                         = 56,000

6% of 56,000 = 3,360

add:  19,200 + 300 + 3360

Plzzzz need help ASAP plsss

Answers

Not a function b/c for the vertical line test it must go through it once

Daria is constructing a line perpendicular to line f. Below is her partial construction.
Through which point does the line pass?

Answers

Answer:

its c

Step-by-step explanation:

Juan took a test last week. He answered 17 questions correctly which is 85% correct. How many total questions were on the test?

Answers

Answer:20 questions I believe

Step-by-step explanation:

Answer:

20

Step-by-step explanation:

17 divided by 85%

7 candes cost £45.29,
how much would 25 candles cost?

Answers

Answer:

161.75

Step-by-step explanation:

45.28 divided by 7 = 6.47

6.47 per cande

6.47 times 25 = 161.75

Use the cosine ratio to find the value of x, to the nearest tenth.
a) 2.7
b) 3.2
c) 4
d) 3.9

Answers

Answer:

c) 4

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Equality Properties

Trigonometry

[Right Triangles Only] SOHCAHTOA [Right Triangles Only] cosθ = adjacent over hypotenuse

Step-by-step explanation:

Step 1: Identify Variables

Angle θ = 34°

Adjacent Leg = x

Hypotenuse = 4.8

Step 2: Solve for x

Substitute [Cosine]:                    cos34° = x/4.8Isolate x:                                      4.8cos34° = xRewrite:                                       x = 4.8cos34°Evaluate:                                      x = 3.97938Round:                                         x ≈ 4

WHOEVER ANSWERS FIRST GETS BRAINLIEST AND I NEED AN EXPLANATION PLZ

Answers

1:you add the numbers 2:you have to the distribute property

Answer:

Q7: -4 ; Q8: 2.6x + 8

Step-by-step explanation:

For the first one, since they are like terms, you can just normally subtract:

3x - 7x = -4x

Its a negative since 3 - 7 = -4 not positive 4.

You did question 8 correctly.

Zachary has been flipping a coin, and he noticed that he had the coin come up tails five times in a row. "The next time has to be heads!" He exclaims. Is he right? Is it theoretically more likely to come up heads? Please explain

Will mark BRAINLIST if right.

Answers

Answer:

No. Each toss is independent so it is NOT more likely to come up heads the next time.

Step-by-step explanation:

That is the answer. Hope it helps

Plz help I need to get my grade up in a week!!

Answers

Answer:

For 13 the slope is 0

Step-by-step explanation:

I can't see 12 nor 11, but 13 is a zero slope because horizonal lines have 0 slope.

Benny went to an arcade where every player gets 2 tokens as they arrive. Each time Benny plays a game he wins additional tokens. The number of games, X, and the total number of tokens Benny has, y.
are represented in the table below.
Complete the table AND write a function rule to represent how many tokens Benny has based on the number of games he plays
Drag and drop an answer choice in each my box below
2 4 6 8 10
10

Answers

Answer:

y = 2x + 2

Step-by-step explanation:

just trust me i took test and it had this question on it lol

Kim had d dollars and she bought a apples for 12 cents each and b bananas for 18 cents each. How many cents did she have left

Answers

Answer:  100d-12a-18b  cents

===================================================

Explanation:

d dollars = 100d cents

for example, if d = 4, then,

4 dollars = 100*d = 100*4 = 400 cents

So Kim starts off with 100d cents.

She buys 'a' apples, where 'a' is a placeholder for the number of apples. If a = 5, then she bought 5 apples and spends 12*a = 12*5 = 60 cents. In general, she spends 12a cents buying 'a' apples.

Similarly, she spends 18b cents buying b bananas. The letter b is the placeholder for the number of bananas.

Overall, Kim spends 12a+18b cents for buying that amount of apples and bananas. Subtract this expression from 100d to find out how much money she'll have left over.

100d - (12a+18b) = 100d-12a-18b

This left over amount is in cents. If you want to convert to dollars, then you would need to divide by 100.

PLEASE HELP THANKS!!!

Answers

Answer:

You first need to know what number 6 4/5 is, which is 6.8. To figure it out, you multiply 6 by 5 then add 4 and put the number you get on top of the fraction so it would be 34/5 = 6.8

6.9 is the answer

6.9 is bigger than 6.8 and smaller than 7

Is this a funtion? please help

Answers

Answer:

No, it is not

Step-by-step explanation:

Here, we want to check if what we have is a function

For a relation to be a function, the mapping must be one to one or many to one

This mean, for every x there must be one y or for every y, there must can be multiple x

But never is it that there are many y for a single x

Looking at the value 0

on the domain, we can see -2 and 1 as the values

Thus, this is not a function

what this means help

Answers

Answer:

1 is -2 and 2 is +5

Step-by-step explanation:

Its how Mafia

It means you have to write the opposite of a number
For example: -9 is the opposite of positive 9
And positive 2 is the opposite of -2

The answer of this problem is -2 and positive 5

Answer true/false. If false, give a counterexample. 11. Perfect squares are closed under multiplication.

Answers

Answer:

so basically thanks for the points mate

Step-by-step explanation:

Answer:

Step-by-step explanation:

it is false because it isnt counterfit for the cenementers

Solve for J MUST SHOW WORK
j/-2 + 7 = -12

Answers

Answer:

j/-2+7=-12

subtract 7 from both sides

whcich cancels the 7 on the LEFT side

j/-2=-19

multiply both sides by 2

which cancels the -2 on the LEFT side

j=-38

wanted the points for it, bc i actually tried

Step-by-step explanation:

Point L is the circumcenter of angle ABC. List any segment(s) congruent to each segment.
20 POINTS

Answers

I would help but I learned this in 5th grade sorry but hope you find a answer!

8/9 divided by 4 equals what?

Answers

Answer:

2/9 = 0.2222222

but it is 2/9

Step-by-step explanation:

HElp

The diagonal length of a rectangle is 19 inches, and the length of the rectangle is 7 inches. Which measurement is closest to the width of this rectangle in inches? 12 in. 17.7 in. 20.2 in. 26 in.

Answers

Answer:

17.7

Step-by-step explanation:

If 6/x=5/y, then 6/5=?/?

Answers

Answer:

[tex] \frac{6}{x} = \frac{5}{y} \\ 6y = 5x \\ Answer \frac{6}{5} = \frac{x}{y} [/tex]

It’s very urgent pppppllllllzzzzzzzz
Help!!!❤️

Thkk

Answers

Answer:

6

Step-by-step explanation:

mark brainliest...........

y = -3 sin x – 2.
what is the sinusoidal axis

Answers

Answer:

The sinusoidal axis is the neutral horizontal line that lies between the crests and the troughs (or peaks and valleys if you prefer). ... Instead, it would still be the horizontal line directly between the crests and troughs which is also the average of the maximum and minimum values

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