Solve the system of linear equations by elimination.
8x - 5y = 11
4x – 3y = 5

Answers

Answer 1
I think this is the answer

8x - 5y = 11
4x - 3y = 5

Answer:

12x - 2y = 16

Related Questions

The sum of three numbers is 41
The second number is 5 times the first
The third number is 14 less than the second
What is the third number?​

Answers

Answer:

11

Step-by-step explanation:

let the first number be n , then the second number is 5n and

the third number is 5n - 14

Sum the numbers and equate to 41

n + 5n + 5n - 14 = 41

11n - 14 = 41 ( add 14 to both sides )

11n = 55 ( divide both sides by 11 )

n = 5

Thus

first number = 5

second number = 5n = 5 × 5 = 25

third number = 5n - 14 = 5(5) - 14 = 25 - 14 = 11

solve.
-7 2/3 + (-5 1/2) + 8 3/4

Answers

Answer:

-53/12

Step-by-step explanation

If you break it down it looks like this:

-23/3 + (-11/2) + 35/4

multiply them so that all their denominators are a similiar multiple (which is 12)

-92/12 - 66/12 + 105/12 = -53/12

Which graph is a function on top

Which graph is not a function on bottom

Answers

Answer:

3) 3

4) 3

Step-by-step explanation:

A function is a line where the x value never repeats

If p = q^r, q=r^p and r=p^q, prove that prq=1.​

Answers

Rewrite each given equation as

[tex]p=q^r\implies \log_p(p)=\log_p(q^r)\implies 1=r\log_p(q)\implies r=\dfrac1{\log_p(q)}=\dfrac{\ln(q)}{\ln(p)}[/tex]

[tex]q=r^p\implies \log_q(q)=\log_q(r^p)\implies 1=p\log_q(r)\implies p=\dfrac1{\log_q(r)}=\dfrac{\ln(r)}{\ln(q)}[/tex]

[tex]r=p^q\implies \log_r(r)=\log_r(p^q)\implies 1=q\log_r(p)\implies q=\dfrac1{\log_r(p)}=\dfrac{\ln(p)}{\ln(r)}[/tex]

where each of the last equalities follows from the change-of-base identity,

[tex]\log_m(n)=\dfrac{\log_b(n)}{\log_b(m)}[/tex]

for any base b > 0 and b ≠ 1. I picked the natural base, e.

Then

[tex]prq=\dfrac{\ln(r)}{\ln(q)}\times\dfrac{\ln(q)}{\ln(p)}\times\dfrac{\ln(p)}{\ln(r)}=1[/tex]

as required.

can someone please help me find x.

Answers

Answer:

We have similar triangles Hence 6x+2=x+35x=1 x=1/5

Damian invests $250 in a savings account with a 4% simple interest rate. Which expressions can be used to find the total amount of interest Damian will earn after 1 year?

Answers

Answer:

$260

Step-by-step explanation:

GIven

P=$250

R=4%

T=1 year

The total amount of simple interest is

A=P(1+rt)

substitute

A=250(1+0.04*1)

A=250(1.04)

A=250*1.04

A=$260

Hence the total amount is $260

Answer:

260

Step-by-step explanation:

what is 39% as a fraction in its lowest form

Answers

Thirty-nine percent expressed as a fraction is 39/100. This can also be written in decimal form as 0.39.

39% as a fraction in its lowest form is 39/100.

To express 39% as a fraction in its lowest form, we need to divide the percentage by 100 and simplify the resulting fraction.

The percentage symbol "%" means "per hundred," so 39% can be written as 39/100.

To simplify this fraction, we can divide both the numerator and denominator by their greatest common divisor (GCD).

Here, the GCD of 39 and 100 is 1, so we divide both numbers by 1:

= 39 ÷ 1 / 100 ÷ 1

= 39/100

Therefore, 39% as a fraction in its lowest form is 39/100.

Learn more about Fraction here:

https://brainly.com/question/23118426

#SPJ6

What is the rate of change of the volume of the cylinder at that instance (in cubic kilometers per second)?

Answers

Answer:

hello your question is incomplete attached below is the complete question

answer : -2400 π

Step-by-step explanation:

dr/dt = -12 km/s

h = 2.5 km

r = 40 km at some instant

hence the rate of change of Volume of cylinder at that instance

= dv / dt = [tex]d(\pi r^h ) / dt[/tex]  

              = [tex]\pi h\frac{d(r^2)}{dt}[/tex]  = [tex]-\pi h *2r *dr/dt[/tex]

hence ; dv / dt = -2400 π

20 - 12 divided by 9

Answers

Answer:

.8 repeating

Step-by-step explanation:

18,6666 is the answer that what I got hopefully this helps

Please Help I will really appreciate it

Answers

Answer:

58.18

Step-by-step explanation:

640/11

Answer:

c

explanation

640/11=58.18...

the minimum cost for parking p is $7

Answers

is there any choices

1. What is the actual length of the truck?
1 cm = 1.7 feet
The gridlines are spaced 1 cm apart.

Answers

The answer is 1.7 feet. I gochu bro

Answer:

20.4

Step-by-step explanation:


5. When y = 7, which of the expressions below will be less than 150?
Select all that apply. *
A) y2.3 B) 3(2y + 5) + 6(3y – 14) C) 2y2 + 6y + 15 D) 8(y + 5) x 2

Answers

answer: A, B, and C

A) 7•2.3
16.1<150

B) 3(2•7+5)
3(14+5)
3(19)
57<150

C) 2•7•2+6•7+15
14•2+6•7+15
28+6•7+15
28+42+15
70+15
85<150

D) 8(7+5)•2
8(12)•2
96•2
192>150

ANSWER QUICK PLEASE I WILL GIVE BRAINLIEST

Answers

Answer:

10

Step-by-step explanation:

Slope = 3; y-intercept = -5
write an equation in slope-intercept form

Answers

The answer is y=3x-5

Help plz I will give brainliest

Answers

Answer:

180 Minutes or 3 Hours

Step-by-step explanation:

25 X 7 is 175

175 rounded by the nearest tenth is 180

180 Minutes.

Three teams, A, B and C, play in a competition.
games won by A: games won by B = 3:1
games won by B: games won by C = 5:1
Team B has won 10 games.
In total, how many games have the three teams won?

Answers

Answer:

42 games

Step-by-step explanation:

From the ratio, we can deduce that;

For every 3 games A won, B won 1

Thus, if B won 10, then A has won 3(10) = 30

From the second part;

For every 1 game won by C, B won 5

since B won 10, then C won 10/5 = 2

So the total number of games won is;

A + B + C

= 2 + 30 + 10 = 42 games

8. Write the equation of the line that is perpendicular to the line y= -1/5X +
9 and passes through the point (-2,-2). *

Answers

Answer:

[tex]y+2=5(x+2)[/tex]

Step-by-step explanation:

Slope is negative reciprocal when lines are perpendicular to each other

therefore m=5

Equation of line in point slope form is given as

[tex]y-y_1=m(x-x_1)[/tex]

[tex]y+2=5(x+2)[/tex]

Olivia's cell phone bill last month was $125. This month her bill is $85. What is the percent of change in Olivia's bill?

Answers

Answer:

32%

Step-by-step explanation:

Olivia's cell phone bill last month was $125. This month her bill is $85. What is the percent of change in Olivia's bill?

The formula for Percent change =

Amount of change/Original amount × 100

Amount of change = Original amount = New amount

Original Amount/bill = $125

New amount/bill = $85

= $125 - $85

= $40

Percent change = $40/$125 × 100

Percent change = 0.32 × 100

Percent change = 32%

Therefore, the percent of change in Olivia's bill is 32%

Copy the proof on paper, mark the givens in the diagram, and fill in the blanks to complete the proof.

Answers

Answer:

Step-by-step explanation:

Too hard for me to answer, sorry

im really sorry this is so late oof

Simplify: (4x2y3)2 8x4y5 8x4y6 16x4y5 16x4y6

Answers

Answer:

(4x²y³)² 8 x⁴y⁵ 8 x⁴ y⁶ 16  x⁴ y ⁵ 16 x⁴ y⁶  = 262,144 x²⁰ y²⁸

Step-by-step explanation:

Given

          (4x²y³)² 8 x⁴y⁵ 8 x⁴ y⁶ 16  x⁴ y ⁵ 16 x⁴ y⁶  

we know that

     [tex]a^{m} X a^{n} = a^{m+n}[/tex]

     [tex](a^{m} )^{n} = a^{mn}[/tex]

   =  (16x⁴y⁶ 8 x⁴y⁵ 8 x⁴ y⁶ 16  x⁴ y ⁵ 16 x⁴ y⁶  

   = 16 ×8×8×16×16 x⁴⁺⁴⁺⁴⁺⁴⁺⁴ y⁵⁺⁶⁺⁵⁺⁶⁺⁶

 = 262,144 x²⁰ y²⁸

can someone answer these, please? I need them soon

Answers

I’m not completely sure but I think
Question 1-A
Question 2-A
Question 3-J
Question 4-B
I’m not completely sure that I’m correct but this is what I would have done

2. Which of the following is the solution of the system of equations shown? A. (−3, −4) B. (–3, 4) C. (3, 4) D. (3, –4). Please show an explanation

Answers

Ummmm, when I click into the pictures it’s all black?

please answer correctly

Answers

Answer:

for the question all the way on the bottom, for the pizza everyone paid 2.59$ each

Answer:

1. (389.205)

2. (3)

3. (35)

4. (-13)

5. (1296)

6. (25)

7. (4.305)

8. (120)

9. (529)

10. ($2.59)

Step-by-step explanation: For 1 I just used a calculator, for 2 it is just going to be 12-9 which is 3, for 3 it is 5/2 x 7/3, make the denominators the same getting 15/6 x 14/6 and getting 210, now divide by 6 getting 35, for 4, it is -3-10 which is -13, for 5 do 6x6x6x6 which equals 1296,  for 6 do 48-23 = 25, for 7 just divide, I used a calculator, for 8, multiply 20 by 12 and get 240, now divide by 2 which is 120. for 9 do 23x23 which is 529, for 10, divide 12.59 by 5 and get an answer of 2.59.    HOPE THIS HELPED!

pls help I'm crying rn​

Answers

Answer:

I hate these so much, so I understand your pain :(

Step-by-step explanation:

1. <8

2. <4

3. <2

4. <3

I truly hope this helps, have a great day/night!

they might not all be correct but I think they are :)


Evaluate the expression.

log,7(1/49)

Answers

Answer:

0.01724

Step-by-step explanation:

calculator

Answer:

-2

Step-by-step explanation:

[tex] \frac{1}{49} = {7}^{ - 2} [/tex]

[tex] = log_{7}( {7}^{- 2} ) [/tex]

[tex] log_{a}( {a}^{x} ) = x[/tex]

[tex] = - 2[/tex]

Explain the difference between
(-1) and
-14

Answers

Answer:

13

Step-by-step explanation:

-1--14

-1+14

13

I'll give brainliest!!!! help!

A ball is thrown in the air from a platform that is 64 feet above ground level with an initial vertical velocity of 32 feet per second. The height of the ball, in feet, can be represented by the function shown where t is the time, in seconds, since the ball was thrown.

h(t) = -16t2 + 32t + 64

Which of the following equations shows the function rewritten in the form that would be best used to identify the maximum height of the ball?

A.
h(t) = -16(t – 1)2 + 80

B.
h(t) = -16(t – 2)2 + 128

C.
h(t) = -16(t – 2)2 + 112

D.
h(t) = -16(t – 1)2 + 96

Answers

The answer is A just trust me

Answer:

I'll write something just to help that person be the brainliest

Step-by-step explanation:

HURRRY DUE IN 1 HR HEEELLLLPPP

Answers

Answer:

63m - 42

Step-by-step explanation:

9m x 7+ 6 x 7
answer is 105m

Answer these questions please

Answers

Answer:

UwU

Step-by-step explanation:

SOLO QUIERO PUNTOS

Other Questions
a train travels 120 km in 2 hours and 30 miniutes. what is the average speed in km/h ? Choices of plowing depths can have enormous social impact.FalseTrue pls help!!!! answer the following questions using complete sentences. Each answer should contain 35 sentences. What do you think is the most important event in the history of the internet? What event has had the biggest impact on your daily life? What is your prediction for the future of the internet in the next 20 years? Which situation below resulted from the heavy irrigation of the Aral Sea? Increased migration to the areas near the sea Overproduction of cotton crops Overpopulation of fish species in the Aral Sea Salinization causing the soil to be of poor quality for growing cotton Flooding during the wet season HELPP FAST I'LL GIVE BRAINLIEST!!!!!!!!!!! plz help with algebra! 50 POINTS + BRAINLIEST! random answers will be reported.please do the equation part too you can write it out and show a pic if it's easier for you In the chemical formula for table sugar C12H22O11, Howmany oxygen atoms are in each sugar molecule? Place the numbers in the table to order them from least to greatest.-14/3 -4 -3.95 -13/3 -4.25 Please help worth 30 points "Although Alibaba is competing in the Internet services industry, it has improved its performance by focusing on innovation and service diversification. This improved performance is best explained by:" The longer leg of a right triangle is 4 more than the short leg. The hypotenuse is eight less than the sum of the 2 legs. SolvePlease help ! Which of these adjectives best describe the imaginary character of Judith Shakespeare in "Shakespeare's Sister"? Choose two options. Whom should mrs Hightower sue for damages? Why? whats the definiton of contition Identify the slope and y-intercept of the line y = 4x + 2 and graph itSlope:Y-intercept: What is the correct definition of ellipse? i need this ASAPcircle that is stretched out a little on both sidessquished circleperfectly round circle Jennie is conducting and investigation in which she observed how water moves through a celery stalk . HELP I NEED HELP ASAP What is the value of x?Enter your answer in the box.x = investigate the impact of increasing numbers of elderly people in the population and explain why