Use elimination to find the solution to the system of equations. 9r + 2y = 59
2r + 5y = 4
A. I = I = 7, y = -2
В. 1 41 I = 2 , Y = 9
C. I = 5, y 14 5 55
D. 1 = 9, y = 2​

Answers

Answer 1

Answer:

r = 7

y = -2

Step-by-step explanation:

9r + 2y = 59 (Multiply this by 5)

2r + 5y = 4   (Multiply this by -2)

45r + 10y = 295

-4r - 10y = -8

41r = 287

r = 7

2r + 5y = 4

2(7) + 5y = 4

14 + 5y = 4

5y = 4 - 14

5y = -10

y = -2


Related Questions

Help me
Question above

Answers

Answer:

6,561

Step-by-step explanation:

Given that;

[tex]log_3x + log_9x = 12\\log_3x+1/2log_3 x = 12\\(1+1/2)log_3x = 12\\3/2log_3x = 12\\log_3x = 12 *2/3\\log_3x = 8\\x = 3^8\\x = 6,561[/tex]

Hence the value of x is 6,561

nikki and dave both work as cleaners

Answers

Answer:

$80.00

Step-by-step explanation:

What is the missing number in the pattern? 9, _____, 35, 48, 61

Answers

Answer:

4 there all adding by 13 so do 13-9 to get 4

Answer: 22

Step-by-step explanation: The answer is 22 because all you have to do it keep adding 13 to the number like.

9 + 13 = 22

22 + 13 = 35

35 + 13 = 48

48 + 13 = 61

etc

Please Help I Will Give Brainliesttt!Select the correct answer. What was the most common rating in the 26-35 age group? Average B. Good C. Excellent D. Poon​

Answers

Answer:

B. Good

Step-by-step explanation:

26-35 age group:

Excellent - 33/97

Good - 50/97

Average - 5/97

Poor - 9/97

The graph of a function is a line passes through points (6,20) and (8,42). What is the equation of this function?

Answers

Answer:

The equation would be y=mx+b so plugging in the slope which is, 11, so y=11x+b WE DO NOT KNOW THE Y INTERCEPT

Morgan invested $1,200 in an account that pays 6% annual simple interest. Morgan will not make any additional deposits or withdrawals. How much interest will Morgan earn on her investment at the end of 7 years?

Answers

Answer:

Step-by-step explanation:

Simple interest per year = $17,500 (0.0825) = $1,443.75 Simple interest = $8,662.50 Joseph Harris is considering an investment that pays 6.5 percent annually

Use a half-angle identity to find the exact value of cos 15º.

Answers

Answer:

Step-by-step explanation:

[tex]cos15=cos\frac{30}{2}[/tex] so the angle we will use in our identity is 30 degrees. The formula is

[tex]cos\frac{30}{2}=\sqrt{\frac{1+cos30}{2} }[/tex] which simplifies to

[tex]\sqrt{\frac{1+\frac{\sqrt{3} }{2} }{2} }[/tex] which simplifies to

[tex]\sqrt{\frac{\frac{2+\sqrt{3} }{2} }{2} }[/tex] which simplifies to

[tex]\sqrt{\frac{2+\sqrt{3} }{4} }[/tex] which simplifies, finally, to

[tex]\frac{\sqrt{2+\sqrt{3} } }{2}[/tex], choice a.

Help please!please ASAP

Answers

Answer:

y = 3x + 1

Step-by-step explanation:

hey! i’ll give brainliest please help

Answers

Answer:

insects adapted for stronger flight may survive in greater numbers.

D is your answer. The forth one down.

Evaluate: f(2) =
Helpppp

Answers

Answer:

32

Step-by-step explanation:

a ferris wheel has a radius of 70 feet and makes a revolution every 60 seconds, the center of the wheel is 90 feet above the ground. the ferris wheel goes counter clockwise. write an equation to model the height of a rider who starts the ride at the 3:00 position? also what is the amplitude, vertical translation and the period

Answers

write an exponential function - I set a 16 1b. block of ice out in the sun on a hot day. 2 hours later I came back and weighed the remaining ice. it weighs 9 lbs. if I know that ice melts at an exponential rate, write an equation that can be used to model the weight of the ice (w) after a given number of hours (h) use your equation to predict the weight of the ice at 5 hours.

Can someone please help me??

Answers

Answer:

2 2/3

Step-by-step explanation:

I used a calculator. -2.33-(-5)=2.67

Answer:

A

Step-by-step explanation:

It cannot be D, because you are subtracting the whole numbers, or B and D, because the fraction does not change.

So, if you were to solve it, you are just subtracting the whole numbers, and leaving the fraction alone. So the fraction will stay as [tex]\frac{1}{3}[/tex], while you just subtract the whole numbers.

-2+5 = 3

The answer is 3[tex]\frac{1}{3}[/tex]

an amusement park has 350 people enter over 7 hours. what is the unit rate per hour?

Answers

Answer:

50

Step-by-step explanation:

to get the unit per hour, you have to divide the amout, which is 350, by the time, which is 7, and you get 50

What is the surface area of the composite solid?


A rectangular prism with a length of 2 meters, width of 8 meters, and height of 2 meters. A rectangular prism with a length of 2 meters, with of 3 meters, and height of 11 meters.

Answers

Answer:

162 m^2

Step-by-step explanation:

Tops:  

 The area of the high top is 3*2 = 6

The area of the lower top is 5*2 = 10

                                                        --------

                                                           16

Bottom:

The area of the bottom is 8*2 =16

Back:

The area of the back is 2*11 = 22

Front:  

The top front is 9*2 =18

The bottom front is 2*2 =4

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

                                           22

Sides

The area of the left side is

               vertical piece  11*3 =33

                 horizontal piece 5*2 = 10

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

                                                           43

The right side is the same = 33+10 = 43

Add them together

top+bottom+ back+front+left+right

16+16+22+22+43+43 =162 m^2

30. Which of the following is the algebraic form for the verbal statement shown?

“13 more than the product of 4 and a number, n”


A,B,C, Or D

Answers

Answer:

Choice B

Step-by-step explanation:

4n (product of 4 and n) + 13 (13 more)

Answer:

B

Step-by-step explanation:

Find missing measure (No.6)

Answers

Answer:

Step-by-step explanation:

6 no

1.angle 2=92 degree(being vertically opposite angle)

2.angle 1+33+92=180(sum of interior angles of a triangle)

angle 1+125=180

angle 1=180-125

angle 1=55

3.angle 3+angle 2+115+90=360(sum of four angles is always 360 degree)

angle 3+92+205=360

angle 3+297=360

angle 3=360-297

angle 3=63

If you place a 37-foot ladder against the top of a building and the bottom of the ladder
is 22 feet from the bottom of the building, how tall is the building? Round to the
nearest tenth of a foot.

Answers

Answer:

28

Step-by-step explanation:

If 2x + 4 = 10. What is the value of x

Answers

Answer:

x=3

Step-by-step explanation:

You subtract the 4 from +4 d +10 and then you left with 2x=6

Then you divide the numbers both by 2 so you are left with x=3.

Have a nice day!!!!!!!!!!

Answer:

x=3

Step-by-step explanation:

2x + 4 - 4 = 10 - 4

2x ÷ 2 = 6 ÷ 2

x = 3

Please help <3 I am struggling

Answers

Answer:

Step-by-step explanation:

what is the volume of the square pyramid

Answers

Answer:

3710.67 mm

Step-by-step explanation:

The formula is a^2 h/3

a = 22  h = 23

First, do 22 squared which is 484.

Now do 23 divided by 3 which is 7.666666667

Now multiply 484 and 7.666666667 together to get

3710.666667 or 3710.67 mm

Dan has an old lawn mower! It takes him 1 hour to mow the whole lawn. How many square yards does Dan cut in one minute? Hints: There are 60 minutes in 1 hour. To find the unit rate divide the area of the lawn by the amount of time it takes Dan to mow the whole lawn.

Answers

Answer:

No solution is possible from the information given.

The area of the lawn is unknown.

Step-by-step explanation:

What is the absolute value of |-7|

Answers

Answer:

Step-by-step explanation:

the absolute vale of -7 is 7

Answer:

absolute value of l-7l is 7

stay safe healthy and happy.

which one is it? please help

Answers

Answer:

I think it’s independent

Step-by-step explanation:

A total of 394 people got on a boat that already had 108 people on it.

what is the best estimate for the total number of people on the boat?

Answers

Answer:

502

Step-by-step explanation:

394+108

Answer:

500 is my best answer

Step-by-step explanation:

1. If Gallup, Harris and other pollsters asked people to indicate their political party affiliation as Democrat, Republican or Independent, the data gathered would be an example of which scale of measurement

Answers

Answer:

im not sure but i think its a bargraph if the answer is coreect please tell

THIS ONE TOO THIS ONE TOO PLS

Answers

Answer:

the probability of drawing a red would be 12/60, or 1/5, which is 0.2 or 20%

Use trigonometry to solve for the indicated side. Show all work
in CANVAS. Round to one decimal point (the nearest tenth).
What is the length of segment DE?
E
6
50°
D
F

Answers

Answer:

x=7.2

Step-by-step explanation:

Tan=O/A

=x/6

Tan50=x/6

×6 on both sides

6× Tan50=7.2

Answer:

DE ≈ 7.2

Step-by-step explanation:

Using the tangent ratio in the right triangle

tan50° = [tex]\frac{opposite}{adjacent}[/tex] = [tex]\frac{DE}{EF}[/tex] = [tex]\frac{DE}{6}[/tex] ( multiply both sides by 6 )

6 × tan50° = DE , then

DE ≈ 7.2 ( to the nearest tenth )

can someone pls help with all 4

Answers

Answer:

D is the correct answer

Step-by-step explanation:

Please mark me as brainlist thanks

Find the largest share when $650 is divided in the ratio 5:6:2

Answers

The largest share is
650x(6/13)
= 300

Randy has 36 tiles.
How should he arrange them so that he has the smallest perimeter?
A.

4 by 9 rectangle
B.

3 by 12 rectangle
C.

1 by 36 rectangle
D.

6 by 6 rectangle

Answers

Answer:

Smallest perimeter setup is (6 by 6 rectangle)

Step-by-step explanation:

Given:

Total number of tile = 36

Find:

Smallest perimeter setup

Computation:

Perimeter = 2(a + b)

So,

Perimeter if (4 by 9 rectangle )

Perimeter if (4 by 9 rectangle ) = 2[4+9]

Perimeter if (4 by 9 rectangle ) = 2[13]

Perimeter if (4 by 9 rectangle ) = 26

Perimeter if (3 by 12 rectangle )

Perimeter if (3 by 12 rectangle ) = 2[3+12]

Perimeter if (3 by 12 rectangle ) = 2[15]

Perimeter if (3 by 12 rectangle ) = 30

Perimeter if (1 by 36 rectangle )

Perimeter if (1 by 36 rectangle ) = 2[1+36]

Perimeter if (1 by 36 rectangle ) = 2[37]

Perimeter if (1 by 36 rectangle ) = 74

Perimeter if (6 by 6 rectangle )

Perimeter if (6 by 6 rectangle ) = 2[6+6]

Perimeter if (6 by 6 rectangle ) = 2[12]

Perimeter if (6 by 6 rectangle ) = 24

So,

Smallest perimeter setup is (6 by 6 rectangle)

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