y = 3x+8 5x + 2y =20 solving systems by substitution

Answers

Answer 1

Answer:

which grade is that u are doing?

Answer 2

Answer:

x=4/11

y=9 1/11

Step-by-step explanation:

y = 3x+8

5x + 2y =20

5x + 2 (3x+8) =20  .. substitute y

5x + 6x +16 = 20

11x = 20-16 = 4

x = 4/11

Y = 3*4/11 + 8 = 1 1/11 + 8 = 9 1/11


Related Questions

please help i missed this class and i’m a little confused (question is in the pic)please tell me how to solve it

Answers

So you have to isolate h to find what h is equal to. You do this by doing the opposite of what is being done to H, so instead of dividing by 7 you multiply the other side by 7.
The answer is 0.

In example 5, a hot dog stand is located halfway between the shoe store and the pizza shop, at point H. Show that PH=HM.
A park, a shoe store, a pizza shop, and a movie theater are located in order on a city street. The distance between the park and the shoe store is the same as the distance between the pizza shop and the movie theater.

Answers

Answer:

rteiyykykkucouyrilhk,dkrbbvvbnkl

Solve for a
PLS HURRY

Answers

Answer:

I guess it is d

Step-by-step explanation:

make it braintliest please

Answer: D

Step-by-step explanation:

This would be my answer, I think im right but I'd wait on someone else just to be sure.

how many feet are there in a mile?

Answers

Answer:

5280ft

Step-by-step explanation:

Last week, the price of pears at the store was $1.15 per pound. This week, the price has increased by 20%. What is the price of pears this week?

plz help

Answers

Answer:

$1.38

Step-by-step explanation:

$1.15 = 100%

So...

$1.15 + (1/5.1.15) =

$1.15 + $0.23 = $1.38

1.38 :) it said I need to use more characters so this is me using more characters Tehehe

The volume of the following cylinder is 602.88cm.
Find the height of the cylinder.

Answers

Answer:

12cm

Step-by-step explanation:

Yuto and Hila attempted to solve the same inequality. Their work is shown below.

Yuto’s Work
Hila’s Work
Negative two-thirds x + 9 greater-than 7. Negative two-thirds x + 9 minus 9 greater-than 7 minus 9. Negative two-thirds x greater-than negative 2. (Negative three-halves) (Negative two-thirds x) less-than (Negative three-halves) (Negative StartFraction 2 over 1 EndFraction). x less-than 3.
Negative two-thirds x + 9 greater-than 7. Negative two-thirds x + 9 minus 9 greater-than 7 minus 9. Negative two-thirds x greater-than 16. (Negative three-halves) (Negative two-thirds x) less-than (Negative three-halves) (StartFraction 16 over 1 EndFraction). x less-than negative 24.

Which statement is true about the work shown above?
Yuto is correct because he isolated the variable correctly and reversed the inequality symbol.
Yuto is incorrect because he should not have reversed the inequality symbol.
Hila is correct because she isolated the variable correctly and reversed the inequality symbol.
Hila is incorrect because she should not have reversed the inequality symbol.

Answers

Answer:

Yuto is correct because he isolated the variable correctly and reversed the inequality symbol.

Step-by-step explanation: hi

Answer:

The answer is A

Step-by-step explanation:

In other words, Yuto is correct because he isolated the variable correctly and reversed the inequality symbol.

What is the PERCENT DECREASE: 1) PRINCETON: December - 50 January - 40 2) WORCESTER: December - 256 January - 197 3) CHICAGO: December - 7050 January - 6708

Answers

Answer: See explanation

Step-by-step explanation:

PRINCETON:

December - 50

January - 40

Decrease = 50 - 40 = 10

Percentage Decrease = Decrease/Original value × 100

= 10/50 × 100

= 20%

2) WORCESTER:

December - 256

January - 197

Decrease = 256 - 197 = 59

Percentage Decrease = Decrease/Original value × 100

= 59/256 × 100

= 23.05%

3) CHICAGO:

December - 7050

January - 6708

Decrease = 7050 - 6708 = 342

Percentage Decrease = Decrease/Original value × 100

= 342/7050 × 100

= 4.85%

3x + 2y = 13 y - x = 4

Answers

Answer: (x,y) = (44/41, 16/41)

Step-by-step explanation:

Distributed Property

Please simplify 5(-x-4)-4

thanks

Answers

it’ll be -5x - 24

you multiply the 5 by 4 and it’ll be 24, and put the x with the 5 and that’ll be your answer :)

What is the correct anwser and how

Answers

Answer:

D

Step-by-step explanation:

5+8=13

NOT 58

Answer: D

Step-by-step explanation:

Well 5+8=13 and not 58, so that’s why it’s incorrect

which is parallel to the line y=-4/5x + 6?

Answers

Answer:

Rewrite in slope-intercept form.

Tap for more steps...

y=−4/5x+6

Using the slope-intercept form, the slope is −4/5 .

m=−4/5

All lines that are parallel to y=−4/5x+6

have the same slope of −4/5.

mparallel=−4/5

Step-by-step explanation:

The line parallel to the x- axis which is given equation is [tex]y=-\frac{4}{5}+6[/tex]

Parallel lines:

Parallel lines are lines that have the same slope. They are lines that do not meet at any given point and the distance between the two points is constant. For example, if we have a line [tex]y=m_1x+c_1[/tex] which is parallel to the line [tex]y=m_2x+c_2[/tex] then: [tex]m_1=m_2[/tex] and we can rewrite the equation of the second line as :[tex]y=m_1x+c_2.[/tex]

We have the equation is:

[tex]y=-\frac{4}{5}+6[/tex]

Now, The equation is in the form of y = mx + c

Hence, The value of slope - intercept form is : m = -4/5

We have to plot the line in the graph :

[tex]y=-\frac{4}{5}+6[/tex]

Learn more about Parallel line at:

https://brainly.com/question/34422955

#SPJ2

20 POINTS!
Which estimate best describes the area under in square units?

Answers

did you get it yet or

Magda is going to finance her car purchase using an auto loan which statement below is accurate

Answers

Answer:

where are the answer choices

Answer:

The statement that is accurate is:

"Her principal is the cost of the car, minus any down payment she makes."

Step-by-step explanation:

Ashkey gets $9,000 a year from the government to pay for school. Her school costs $3,000 for She is away from home for 8 months. She pays $400 a month for rent. Her phone averages $50 a monthShe pays about $150 a month in groceries. Create a budget for How much does she have left for activities for the 8 months?

Answers

Answer:

1200

Step-by-step explanation:

400+50+150*8+3000=7800

9000-7800

Answer:

6,600

Step-by-step explanation:

9000 − 3000 + 600 =

6600

(I don't know if this what you wanted but I hope it will help)

What value of x makes the equation 4x + 11 = -13 true

Answers

Answer:

4x − 3= −12x + 13​

4x + 12x = 13 + 3

16x = 16

x = 1

Step-by-step explanation:I hope that will help you.

The answer I got is  x= -6

I don't even understand this, if you could help me answer and explain that would be awesome.​

Answers

2³=8

so answer is 2

use calculator incase you have one

but my answer totally correct worry less and input

Help please and thank you!

Answers

answer 5.25

Explanation Solve for X
by simplifying both sides of the equation, then isolating the variable.
Exact Form:
Answer: 5.25

Explanation

A rectangle is 2 times longer than it is wide. The diagonal of the rectangle is 15 cm. What is the width of the
rectangle?

Answers

This is fairly simple. Just do 2x15 to get your answer 2x15=30. Explanation if it is 2 times longer you would do 2 and then when it says it is 15 diagonal that is where the 15 comes in and it would be 2x15. So your answer is 30
Your answer would be 30

Solve for x.
32 - 9 = 72 +14

Answers

Answer: their is no x?

Step-by-step explanation:

Answer:

Step 1 : 9=72 & 8=56

So, in 8 & 9, values are 72 & 56 resp. The gap between the two are

72 - 56 = 16

Step 2 : 8 = 56 & 7 = 42

So, in 8 & 7, values are 56 & 42 resp. The gap between the two are

56 - 42 = 14

Step 3 : 7 = 42 & 6 = 30

So, in 7 & 6, values are 42 & 30 resp. The gap between the two are

42 - 30 = 12

Step 4 : 6 = 30 & 5 = 20

So, in 6 & 5, values are 30 & 20 resp. The gap between the two are

30 - 20 = 10

Step 5 :

From steps 1, 2, 3 & 4 its’s clear that the gap between the next sequence is 8.

4 = x

So, now

20 - x = 8

X = 20 – 8

X = 4

So, 4 = 12

Now, to find 3 = y, we know that the gap between the next sequence is 6.

So, now

12 - y = 6

Y = 12 – 6

Y = 6

So,  3=6

Step-by-step explanation:

I’ve tried and none my answers match the choices

Answers

Answer:-13/3

Step-by-step explanation:

PLEASE HELP
Find the slope of the line passing through
the points (-3,-3) and (5. 5) using the
slope formula.

Answers

Answer:

slope = 1

Step-by-step explanation:

-3 | -3

5  | 5

_____

8  | 8

8/8= 1

A building has 15 floors of offices above
ground and 3 floors below ground. Lucy
parks on the 3rd floor below ground
and has an office on the 10th floor. The
ground floor is floor zero. How many
floors must she go up from her car to
her office?

Answers

Answer:

13 floors

Step-by-step explanation:

it says the ground floor is floor zero. she is 3 floors below the ground floor so you add 3+10 to get the amount of floors she has to go up to get to her office.

The period is found by finding the horizontal distance between

Answers

Answer:

P and W

Step-by-step explanation:

Its eqsy just pay attention in class.


A cylindrical container holding sugar has a height of 14 inches and a diameter of 6 inches. Which of the following is the closest to
the volume of the sugar container?

Answers

I have a lot to say I don’t think you

How to find percents of numbers using multiples of 100, 10, and 1%?
I need this for my summary, please help!!

Answers

Answer:

Im not too sure what the question is

Step-by-step explanation:

but when finding the percent of any number, 10% will always move the decimal over to the left once. So 10% of 300 is 30.0 This also works for 1%, you just move the decimal over twice. So 1% of 300 is 3

Jamie burned 480 calories in an exercise
class on Monday. She took a different class
the next day and burned as many
calories as she did on Monday. How many
calories did she burn on Tuesday?

Answers

480? I mean she burned as many as Monday and Monday she burned 480..

Work out the area of a square with base,
b
= 4cm

Answers

Answer:

since

formula is 4a

then

answer 16...

You can represent the measures of an angle and its complement as tº and (90 – x)". Similarly, you can represent the measures of an angle and its supplement as x° and (180 – x)". Use these expressions to find the measures of the angles described.
1. The measure of an angle is three times the measure of its supplement.
2. The measure of the supplement of an angle is three times the measure of its complement.
3. The measure of an angle increased by 20° is equal to the measure of its complement.​

Answers

Answer:

180° - t = 5 · ( 90° - t )

180° - t = 450° - 5 t

5 t - t = 450° - 180°

4 t = 270°

t = 270° : 4

t = 67.5°

The measure of an angle is 67.5°.

Its complement angle: 22.5°.

Its supplement angle: 112.5°

112.5° = 5 x 22.5°

i hope this is right <3

How many square centimeters of
wrapping paper will be used to wrap the
shoe box?
14 cm
4
10 cm
10
28 cm

Answers

Answer:

1624 cm^2.

Step-by-step explanation:

2 * 10*28 + 2*14*28 + 2*10*14

= 560 + 784 + 280

= 1624 cm^2.

The number of square centimeters of wrapping paper will be used to wrap the shoe box should be [tex]1624\ cm^2.[/tex]

Calculation of the number of square centimeters:

Since

The length, width, and the height is 14, 10 and 28

So here it should be

[tex]= 2 * 10*28 + 2*14*28 + 2*10*14[/tex]

= 560 + 784 + 280

= 1624 cm^2.

Hence, The number of square centimeters of wrapping paper will be used to wrap the shoe box should be [tex]1624\ cm^2.[/tex]

Learn more about number here: https://brainly.com/question/13388163

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