Solve the systems of equations 9x+5y=41 and x+y=9 by combining the equations

Answers

Answer 1

Step-by-step explanation:

multiplying the 2nd eqn by 9 we get,

9x+9y=81

then,subtracting 1st and 2nd eqn

9x+5y=41

9x+9y=81

- - -

__________

0. -4y=-40

we get y = 10

then we get x=9-y

x=9-10

x= -1

so x is -1 and y is 10


Related Questions

Franco wants to buy a mini drone for $40. If he has $16, what percent of the cost of the drone does he have?

Answers

Answer:

He has 40 percent of the cost of the drone

Step-by-step explanation:

16/40×100/1=40%

The graph of a system of equations with the same slope and the same y intercepts will have no solutions

Answers

Answer:

never!

Step-by-step explanation:

it has infinite numbers

If you flip a fair coin five times what is the probability that you will get exactly 3 tails

Answers

Answer:

5/16 or 10/32

Step-by-step explanation:

I need help with this question!

Answers

9514 1404 393

Answer:

x = 87x = 5611x -5 = 83

Step-by-step explanation:

Consecutive interior angles have a sum of 180°, so ...

  (41 +7x) +(11x -5) = 180

  18x +36 = 180 . . . . . . . . . simplify

  x + 2 = 10  . . . . . . . . . . . . divide by 18

  x = 8

The angle 7x is then ...

  7x = 7(8) = 56 . . . . degrees

The angle 11x -5 is ...

  11x -5 = 11(8) -5 = 83 . . . . degrees

__

Check

41 + 56 + 83 = 97 +83 = 180 . . . . as required

Answer:

According to the above problem

[tex](7x) + (11x - 5) + 41 = 180 \\ 18x = 180 + 5 - 41 \\ 18x = 144 \\ \boxed{x = 8}[/tex]

Therefore, the angles are 41°, 56° and 83°.

Please only answer if you know the answer!!!

Answers

Answer:

y=3x

Step-by-step explanation:

y=mx+b, m is slope, b is y-intercept

Answer: y = 3x

The origin is (0,0)

Evaluate. Write your answer as a fraction or a whole number.... what is 1/2 exponent 1

Answers

Answer:

1/2

Step-by-step explanation:

Anything with an exponent of 1 is itself.

A bus company has sold 416 tickets to take people to a concert.

Each bus has 52 seats.

How many buses are needed?


PLZZ HELP, I HATE MATHS WITH A PASSION!!!!

Answers

Answer:

8

Step-by-step explanation:

416/52 = 8

Graph the function.
g(x)=1/3(x-6)^2+1

Answers

Step-by-step explanation:

g(x)=1/3(x-6)^2+1

The graph of this function is in the attachment

HURRY PLEASE!!! IM BEING TIMED. I WILL GIVE YOU BRAINLIEST!

Answers

Answer:

what is Joshuas savings?

Answer:

10 months

Step-by-step explanation:

250 / 25

hope this helped :))

Write 1/5 as a percent.

Answers

Answer:

0.2

Step-by-step explanation:

your answer would be 20%

because 20 goes into 100 five times.

hope this helps:)

A sculptor has just finished creating a large wooden sphere for a sculpture he is working on. The sphere has a radius of 4.3 feet and weighs approximately 10,578.59 pounds. What is the approximate density of the wood used to create the sphere? I need help

Answers

density = mass/volume

the mass is 10578.9 pounds

the volume of a sphere is v = 4/3 πr^3

v = (4/3) (π) (4.3)^3
v = 333.04

10578.9 / 333.04 = 31.76

the final density is 31.76!!

2x - y _> 2 and y<4
..

Answers

Answer:

2x - y _> 2 = 4 / y<4 3.2

Step-by-step explanation:

2.
Jerry Filled 7/8 of his fish tank with water. What percentage is equivalent to the fraction of the fish tank that Jerry filled?

Answers

The percentage is equivalent to the fraction of the fish tank that Jerry filled is 87.5 %

Since Jerry filled 7/8 of his tank. We what to convert this to percentage. We multiply it by 100.

So, 7/8 × 100 % = 7 × 12.5 %

= 87.5 %

So, the percentage is equivalent to the fraction of the fish tank that Jerry filled is 87.5 %.

Learn more about percentages here:

https://brainly.com/question/18569053

Help

D
Dmsjzjzjzjjzzxhxhxhxhxhxh

Answers

Answer:

18

Step-by-step explanation:

[tex]{82 { }^{2} } - 80 {}^{2} = 324 \\ \sqrt{324 } = 18[/tex]

18 cnfjvndjcjdfjejfjdkfkfn

I need help please ASAP

Answers

I know the answer is

PLEASE HELP THANK YOU ILL MARK BRAINLESS

Answers

Answer:

m = 3/4

Step-by-step explanation:

We have the points (-2,2) and (2,5). We can use those to calculate the slope:

m = 5 - 2 / 2 - (-2)

m = 5 - 2 / 2 + 2

m = 3/4

A rectangle has a width of 46 centimeters and a perimeter of 202 centimeters. What is the rectangle's length?

Answers

Answer:

The awswer is 55

Step-by-step explanation:

Answer:

53

Step-by-step explanation:

The rectangle has a width of 46, multiply that by 2, you get 92, subtract 92 by 202 and you get 106. Divide 106 by 2 and you get 53

I will give brainiest to whoever answers correctly !!

Answers

Answer:

$323

Step-by-step explanation:

The bank collected  [tex]8\frac{1}{2}[/tex]% on the date of maturity , that represents

[tex]8\frac{1}{2} =\frac{17}{2} =8.5[/tex]

Thus,the bank obtained

[tex]3800.0.085=323[/tex]

The main paid $323 for the use of the money!

PLEASE MARK ME AS BRAINLIEST

_______ can be described as ice crystals that fall to the ground before melting.

Answers

Answer:

Snow

Step-by-step explanation:

Because if you think of it when snow falls not all of it makes it to the ground  while in its form

95°
60°
29
o
X =
Plzzzz I need this

Answers

Answer:

x=95

Step-by-step explanation:

They are vertical angles

A woman purchased a used car for $3,000. She decided to sell the car for 20% above her purchase price. She could not sell the car so she reduced asking price by 20%. If she sells the car at the reduced price, she will have a profit or a loss or will she break even?

10.1 #17

Answers

Answer:

She will have a loss of $ 120

Step-by-step explanation:

Purchase price of car = $ 3000

20% of 3000 = [tex]\frac{20}{100}*3000[/tex]

                     = 20 * 30

                    = $ 600

Selling price = 3000 + 600 = $ 3600

Reduction price = 20%  of 3600

                          [tex]\frac{20}{100}*3600[/tex]

                       = 20  * 36

                       = $ 720

Current selling price after reduction = 3600 - 720

                                                            = $ 2880

Loss = 3000 - 2880

        = $ 120

She will break even
3000x20%=600. Which is above her purchase price total 3600 and she couldn’t sell.
She reduced the asking price(3600) by 20%
Which would -600. Now she’s asking 3000 what she paid.
Hope this helps

Ms. Kim's class has 24 students.
.
There are 18 students in the class who study Spanish
The other students in the class study French
In Ms. Kim's class, which of the following is the ratio of students who study Spanish to students who study French?

Answers

The ratio is 18:6

18 students study Spanish and 6 students study French

So the answer would be 18:6

A radio station ordered hats and coffee mugs to give away as prizes. A total of 1,000 of these items were ordered, and 3 times as many coffee mugs were ordered as hats. In which equation does h represent the number of hats ordered?​

Answers

Answer:

The options are not shown, so i will answer in a general way.

Let's define the variables:

h = number of hats

m = number of mugs.

We know that a total of 1000 items were ordered, then:

h + m = 1000

We also know that we have 3 times more mugs than hats, this can be written as:

m = 3*h

Now we have the system of equations:

h + m = 1000

m = 3*h

To solve these, we usually start by isolating one of the variables in one equation and then replace that in the other equation, but in this case, we already have m isolated in the second equation, then we can replace that in the first equation to get:

h + m = 1000

h + (3*h) = 1000

Now we can solve this equation for h, and find the number of hats ordered.

4*h = 1000

h = 1000/4 = 250

There were 250 hats ordered.

if if 30 per increase in the salary of usman results in rs.4500 what was the actual salary of usman​

Answers

Answer:

The actual salary of usman was Rs. 3461.53

Step-by-step explanation:

Given that:

Percent increase in salary = 30%

Total salary percent would be = (100+30)% = 130%

Salary after increment = Rs. 4500

Let,

x be the actual salary before increase.

According to given statement,

130% of x = 4500

[tex]\frac{130}{100}x=4500\\1.3x=4500[/tex]

Dividing both sides by 1.3

[tex]\frac{1.3x}{1.3}=\frac{4500}{1.3}\\x=Rs 3461.53[/tex]

Hence,

The actual salary of usman was Rs. 3461.53

Which ordered pair is a solution of the system of inequalities below? {2x−y≥−28x−y<5

Answers

Answer:

B

Step-by-step explanation:

Answer:

A

Step-by-step explanation:

Plug in the numbers for x and y

2(0)-(0)[tex]\geq[/tex]-2

0[tex]\geq[/tex]-2

8(0)-(0)<5

0<5

What is the value of this expression when g = 5 and h = 1? 3 index square root 2g-2h+g A. 13 B. 16 C. 9 D. 7

Answers

The value of the expression is A.13

Why do non STEM majors detest taking algebraic courses at the collegiate level?

Answers

Answer:

Because they find it hard to pass in the past.

Step-by-step explanation:

Non-STEM majors detest taking algebraic courses at the collegiate level because based on their past experiences in high school, whereby they probably do not excel in algebra, numbers, or mathematical subjects in general, the thought of going through advanced numbers and equations can be overwhelming.

Nobody wants to have or at least start college with poor grades. Hence, because non-STEM students find algebraic courses hard to pass in the past, they detest taking the course that has to do with it at the college level.

a piece of cheese weighting 2/3 pound is to be divided into 8 equal portions. what will be the weight of each portion?

Answers

Answer:

1/12 lb

Step-by-step explanation:

2/3 x 1/8 = 2/24 = 1/12

Answer: 1/12

Step-by-step explanation: 2/3 / 8/1 is actually multiplying the first number by the reciprocal of the second. So 2/3 x 1/8. That equals 0.08333... or 1/12.

Hope this helps!

help me plz urgent will give brainliest

Answers

Answer:

x = -5

Step-by-step explanation:

[character limit thing]

Step-by-step explanation: x= -5

how are you

Mark me brainliest

4. If two times a number increased by 5 equals 9, then find the number

Answers

2x + 5 = 9
2x = 4, x = 2
Solution: the number is 2

Answer: x = 2

Step-by-step explanation:

Let x represent the unknown number:

2x + 5 = 9

Subtract 5 from both sides

2x = 4

Divide both sides by 2

x = 2

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