Solve each system using substitution. Check your answer.
x+y=8
y=3x

Answers

Answer 1

Answer:

x = 2

y = 6

Step-by-step explanation:

x + y = 8

x + (3x) = 8

4x = 8

4x ÷ 4 = 8 ÷ 4

x = 2

-------------------------------

y = 3x

y = 3(2)

y = 6

----------------------------------

x + y = 8

(2) + (6) = 8

8 = 8


Related Questions

a 9 foot ladder is placed 4 feet from the base of a building.about how high does the ladder reach

Answers

Answer:

8.06 feet

Step-by-step explanation:

use the Pythagorean theorem

9^2 = 4^2 + x^2

81 =16 +x^2

x^2 = 65

x = 8.06 feet

Find the measure of each missing angle explain work

Answers

angle 1: 52 degrees
angle 2: 79 degrees
angle 3: 38 degrees

explanation:
angle 1: 180 - 90 - 38 = 52
angle 2: 180 - 63 - 38 = 79
angle 3: 90 - 52

A mountain bike originally priced at $964.00 is up for sale at a discount of 11%. What is the price of the mountain bike after the discount?

Answers

Answer:

857.96

Step-by-step explanation:

964/100=9.64

9.64x11=106.04

964-106.04=857.96

Here is a list or numbers. 6,7,2,4,6,6,9,5,3,3
Work out the medium
Work out the mean

Answers

Answer:

The medium - 6,6

The mean - 5.1 or 5

Step-by-step explanation:

The medium is the middle number(s)

The mean is when you average the numbers (adding them all up then dividing by how many numbers there are).

Answer: before u do all of this put the number in smallest to biggest the mean is u add all the number then when u get the answer u divide the number by how many numbers are there so 2 + 3+3+4+5+6+6+6+7+9= 51 now 15 divided by 10 =5.1 that is the mean

Now the medium is u put the number in smallest to biggest again 2334566679 now u have to find the numbers that are the same so u see how there is two 3's and three 6's in the numbers right so u have to look very carefully u could put 3 has the answer put that is not the answer because there is only two 3's and there is three 6's so which is bigger two 3's or three 6's three 6's is bigger so that is the answer.

Hoped it helped don't forget to drop a heart  !!!

Step-by-step explanation:

Jackie runs and rides her bike. She runs 6 miles an hour. She bikes 18 miles an hour. Last week she ran and bikes a total of 216 miles. It took her 16 hours. How many hours did Jackie run and bike last week. Show your work

Answers

Answer: she bikes for 10 hours and runs for 6

Step-by-step explanation: suppose that x equals the amount of hours she runs and y equals the amount of hours she bikes.

6x+ 18y=216

x+y=16

(This is your system of equations)

(Starting with the second equation, x+y=16)

y=-x +16 (move x to the other side by transposition)

Now that you have something that equals Y you plug it in to the other equation:

6x+18(-x+16)=216

(Start solving)

6x-18x+288=216 (used distributive property)

-12x+288=216 (Combine like terms)

-12x=-72 (use transposition again)

x=6 (divide to get x by itself)

Now you plug in the value of x into your equation for the value of “y”, y=-x+16,

Y=-6+16 (plugged in the value of x)

Y=10 (solved the equation -6+16)

What is the side length of a square with the same area as the rectangle

Answers

Answer:

Down Below

Step-by-step explanation:

A rectangle and a square have the same area. The length of the rectangle is 48 meters more than two times its width. The length of a side of the square is 48 meters. The side of the square is 72 meters less than five times the width of the rectangle.

Answer:

wait what

Step-by-step explanation:

A pool in the shape of a rectangular prism is being filled with water. The length and width of the pool is 24 feet and 15 feet. If the height of the water in the pool is 11/3 feet, what is the volume of the water in cubic feet?

Answers

Answer:

1320 cubic feet

Step-by-step explanation:

Given

[tex]Length = 24ft[/tex]

[tex]Width = 15ft[/tex]

[tex]Height = \frac{11}{3}ft[/tex] --- of water

Required

Determine the volume of the water?

Volume is calculated as:

[tex]Volume = Length * Width * Height[/tex]

[tex]Volume = 24 * 15* 11/3[/tex]

[tex]Volume = 1320[/tex]

Hence, the volume of the water is 1320 cubic feet

Use the Distributive Property on 45x-6

Answers

Answer:

180

Step-by-step explanation:

45 × -6 = 45 × [10+(-6)]45 × (10-6)45 × 4180

Find the values of x and y that make the quadrilateral a parallelogram.

Answers

The values of x and y that make the quadrilateral a parallelogram are x=3 and y=1.

What is parallelogram and its properties?

A parallelogram is a four-sided flat shape with opposite sides that are parallel and equal in length.

Properties are:-

Opposite sides if parallelogram are equal.

The consecutive angles of a parallelogram are supplementary (their sum is 180 degrees).

The diagonals of a parallelogram bisect each other (they intersect at their midpoint).

The slope of the line between the points (4x+6, 4y-3) and (7x-3, 3y+1) is:

slope = (3y+1 - 4y+3) / (7x-3 - 4x-6)

= (-y + 4) / (3x-9)

The slope of the line between the points (7x-3, 3y+1) and (3y+1, 4y-3) is:

slope = (4y-3 - 3y-1) / (3y+1 - 7x+3)

= (y-4) / (7x-3 - 3y-1)

= (y-4) / (7x-3 - 3y-1)

Setting these two slopes equal to each other, we have:

(-y + 4) / (3x-9) = (y-4) / (7x-3 - 3y-1)

Simplifying this equation, we get:

(7x-3 - 3y-1)(-y+4) = (3x-9)(y-4)

-7xy + 28x + 3y^2 - 13y - 7 = 3xy - 12x - 9y + 36

Rearranging and simplifying, we get:

3x + 2y = 11 ... (1)

Similarly, we can find the slope of the line between the points (4x+6, 4y-3) and (3y+1, 4y-3) and the slope of the line between the points (7x-3, 3y+1) and (4x+6, 4y-3) and set them equal to each other. We get another equation:

4x - 3y = 9 ... (2)

We now have two equations with two variables. Solving for x and y, we get:

x = 3

y = 1

To know more about equation visit:

https://brainly.com/question/29174899

#SPJ1

Layla earned an 80% on a recent math
quiz. She scored 16 points. How many
total points were there on the quiz?

Answers

I think it might be 20???

It has to be 20 because if you calculate 80 divided be 16, that’s is 5 and if you add five four time that’s would lead the 16 to 20 and lead the 80 to 100 because 5 times 4 equals 20

100 points.
A company makes paper labels for paint cans. As shown below, each can is in the shape of a cylinder with a height of 9in and a diameter of 8in. The paper label is wrapped around the can and covers only the side of the can (not the top or bottom). If the company makes 15 labels, how many square inches of paper will be needed? Use 3.14 for π, and do not round your answer.

Answers

The answer is 326.56 square inches. By using and substituting the values in the formula of Total Surface Area of a cylinder, i.e., 2*pi*(r+h), we get the value 326.56

Find (fxg)(a)?thanks !!

Answers

Answer:

12a^2+13a+3

explanation:

multiply:

(3a+1)(4a+3)=(fxg)

12a^2+13a+3

A group of 8 friends went to lunch and spent a total of $76, which included the food bill and a tip of $16. They decided to split the bill and tip evenly among themselves.

Which equations and solutions describe the situation? Select two options.
The equation StartFraction 1 over 8 EndFraction (x + 16) = StartFraction 76 over 8 EndFraction represents the situation, where x is the food bill.
The equation StartFraction 1 over 8 EndFraction (x + 16) = 76 represents the situation, where x is the food bill.
The solution x = 60 represents the total food bill.
The solution x = 60 represents each friend’s share of the food bill and tip.
The equation 8 (x + 16) = 76 represents the situation, where x is the food bill.

Answers

Answer:

1) The equation 1/8(x+16)=76/8 represents the situation, where x is the food bill.

2) The solution x=60 represents the total food bill.

These both answers are correct.

Step-by-step explanation:

Since there are 8 group of friends, and the total amount spent by them is $76 including the tip i.e $16.

If x is the food bill our equation can be:

(x+16)/8 = 76/8

 

(x+16)/8 = 9.5

x+16= 9.5*8

x= 76 -16

x= 60

The food bill is x=60.

Step-by-step explanation:

Answer:

A and C

Step-by-step explanation:

got it right on ed

this is easy (1 yard equals 3 feet) that is the hint

Answers

Answer:

12

Step-by-step explanation:

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الدعبدالحان وظيفة حزلتةر 09
جیره تازمالت
في الرامام
ستم بدم / رود
للمرة الأول: نظمت مؤسسة تربو برحلة لاگده
64 ) البد قسوا على انتاج بحیک دمكم كل وين ما
ه ماهو التلافي النجم الأفواج التي تحصل عليها؟
) هل يوجد في عدد تلامده اوى و
با ماء الرحلة توقفوا لشاور وحد القاء حبه نیم
الحبة الواحدة DA
3615
ماهو الميل الكلية التي دفع كل التلامية ؟
از اعلم ان الكلامير الظلموا من هددي تامالت
على الساعة min
50 اة ووصلوا إلى مدينة جاية لياخوران
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) ماهي الدا الي استرتها التلامير الوصول إلى
رد لة نداره ؟
3
1ho 5 min å hull the​

Answers

yep yep yep yep yep yep

Answer:

you said This first is the average, and Abd al-Dahan stressed the job of his party, 09 Jira Tazmalt in Al-Ram, in Dam / Rud, for the first time: The Turbo Foundation organized a trip to Jeddah 64) The Bedouin was cruel to the production of your blood every way

Step-by-step explanation:

thank for the info

Mach the Zodiac to the Months (In order of Zodiac) (NO HELP FROM FRIENDS OR INTERNET)

Libra December-January
Taurus March-April
Cancer October-November
Leo February-March
Pisces August-September
Libra November-Becember
Gemini July-August
Aquarius September-October
Aries June-July
Virgo January-Febuary
Sagittarius May-June
Capricorn April-May

Answers

Answer:

Virgo:september-october,

Step-by-step explanation:

Capricorn December-January
Aquarius January - February
Pisces February- March
Aries March- April
Taurus April- May
Gemini May-June
Cancer June- July
Virgo July- August
Leo August- September
Libra September- October
Scorpio October- November
Sagittarius November- December

Are the ratios 3:5 and 6:10 equivalent?

Answers

Answer:

Yes

Step-by-step explanation:

An equivalent ratio is two or more ratios that have the same proportion. 3:5 and 6:10 do, so they are equivalent. An explanation is below.3:5 is exactly half of 6:10. I will explain the math in the steps below6 ÷ 2 = 310 ÷ 2 = 5Put them together: 3:5

I hope this helps!

PLEASE HELP ASAP THIS IS MY LAST QUESTION

Answers

X=2.6 please give brainly

help me out I will gave points​

Answers

Answer:

c

Step-by-step explanation:

95 POINTS FOR AWNSER
Read this word problem.
In the morning, the temperature was

10°C. By the afternoon, it had risen to

2°C. What was the change in temperature from the morning to the afternoon?
To solve the problem, Luke subtracted

2–(

10) and came up with an answer of 8°C. Is Luke correct? Why or why not?

Answers

Answer:

[tex]yes \: he \: is \: correct \\ \underline{\boxed{(\triangle{ \delta}) = 8}}[/tex]

Step-by-step explanation:

[tex]change \: in \: temp. \: ( \triangle{ \delta}) = t_2 - t_1 \\ hence \to \\( \triangle{ \delta}) = (- 2) - (- 10) \\ (\triangle{ \delta}) = - 2 + 10 \\ (\triangle{ \delta}) = 10 - 2 \\ (\triangle{ \delta}) = 8[/tex]

Answer:

No

Step-by-step explanation:

Luke only does it mathematically, he didnt bothet to check first by following step by step explanation

Plz help im very confused. Find Cos E.

Answers

Answer:

cos E =9/41

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

cos E = adjacent/ hypotenuse

Cos E = 18/82

cos E =9/41

Name the angle pair relationship for the pair of angles in the picture.

Answers

Answer:

Supplementary

Step-by-step explanation:

These angles are on the same line, they add up to 180

15÷10=8÷x kactır
söylermisinizzzzzzzzzzzzzzzz acilllllll lazımdaaaaaaaa​

Answers

Answer:

x=8\3................

I don't know.... sorry...!...

what is the degree of the function f(x)=x⁴-5x+8+x²?​

Answers

First put it in decreasing power according to x.

x^4-5x+8+x^2

=x^4+x^2-5x+8

Now this question is asking what is the highest degree of x you see in this function.

4 of course.

Therefore the answer to his question is degree of 4.

Done!

Which expression is equivalent to 1/7 divided by 2/5

Answers

Answer:

is C

1/7 • 5/2

have a nice day!

i need to simplfiy the answer can someone help me with the question

Answers

Answer:

q

Step-by-step explanation:

1. In a karate class there are 22 students. 15 of the students are male. What 6 is the ratio of females to the total number of students?
22:15
15:22
7:22
7:15​

Answers

Answer:

15:22

the ratio of men to women in a karate class is 3.3:1. If there are 100 women, how many men are there?Step-by-step explanation:

Dale plows his field at a constant rate of 18 mph. If Dale plows for 6 hours, how many miles of his field did he cover? A. 3 mi. B. 18 mi. C. 68 mi. D. 108 mi.

Answers

Answer:

108

Step-by-step explanation:

If Dale has a constant rate that means no matter how many hours, every hour he mows he will mow 18 miles. He mowed for 6 hours, so all you have to do is multiply 6*18, and your answer is 108 miles.

Answer:

a

Step-by-step explanation:

18 divded by 6 is 3

If the nth term of a number sequence is n^2 + 2,
find the first 3 terms and the 10th term ​

Answers

Answer:

The first three terms are [tex]3,6,11[/tex]

The 10th term is [tex]102[/tex]

Step-by-step explanation:

An ordered list of numbers is known as a sequence such that each number in the sequence is called a term.

The nth term is [tex]a_n=n^2+2[/tex].

To find the first 3 terms, put [tex]n=1,2,3[/tex]

[tex]a_1=1^2+2=1+2=3\\a_2=2^2+2=4+2=6\\a_3=3^2+2=9+2=11[/tex]

To find the 10th term, put [tex]n=10[/tex] in [tex]a_n=n^2+2[/tex]

[tex]a_{10} =(10)^2+2=100+2=102[/tex]

what is 4x-7y=3
x-7y=-15

Answers

Answer:

0 i think if im wrong im sorry

Step-by-step explanation:

Answer:

The answer is x=6, y=3

Step-by-step explanation:

Multiply each equation by the value that makes the coefficients of y opposite(−1)⋅(4x−7y)=(−1)(3)x−7y=−15

Simplify.

−4x+7y=−3x−7y=−15

Add the two equations together to eliminate y from the system.−4x+7y=−3+x−7y=−15−3x=−18

Divide each term by −3 and simplify.

x = 6

Substitute the value found for x into one of the original equations, then solve for y.

y = 3

The solution to the independent system of equations can be represented as a point.(6,3)

The result can be shown in multiple forms.

Point Form: (6,3)

Equation Form: x=6, y=3

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