Solve the system:
3x+6y=51
y=40-5x

Write down your solution here

Answers

Answer 1

Answer:

x=7 y=5

Step-by-step explanation:

3x+6(40-5x)=51

3x+240-30x=51

-27x+240=51

-27x=-189

27x=189

x=7

y=40-5(7)

y=40-35

y=5

Answer 2
X=7 y=5
You need to used the second equation and isolate either x or y. It’s your choice. Then, use that and substitute it in for the first equation. Then you will get an integer and substitute it back to the second equation.

Related Questions

Interest of $1,632 with principal of $16,000 for 306 days (ordinary interest) results in a rate of​

Answers

Answer: 12%

Step-by-step explanation:

Find an equation of the line that has a slope of -1 and a y intercept of 6. Write your answer in the form y=mx+b

Answers

Answer:

y = -x + 6

General Formulas and Concepts:

Algebra I

Slope-Intercept Form: y = mx + b

m - slope b - y-intercept

Step-by-step explanation:

Step 1: Define

Slope m = -1

y-intercept b = 6

Step 2: Write Equation

Substitute in variables into the general form

y = -1x + 6

y = -x + 6

Answer is :

y = -x + 6!!!!

Step-by-step explanation:

The solution of 5(x+2) – 3x = 2(x – 5)

Answers

Answer:

Step-by-step explanation:

5x + 10 - 3x = 2x - 10

2x + 10 = 2x - 10

0x = -20

no solution

What is the difference between -4 and 6
-10
-2
2
10
Mark brainly if ur right please help ASAP

Answers

Hey,

Answer:

2 and -2

Good luck :)

QUESTION 8 of 10: You have a gross lease of $1,000 per month. Taxes and maintenance total $500 per month. What is your total rent payment?

Answers

Answer:

1500

Step-by-step explanation:

just took the test

Your total monthly payment would be; 1,500 dollars.

What is Monthly Rent?

Monthly Rent means the monthly installments of the Annual Minimum Rent and the estimated annual utility bills payable by the Lessee under this Rental Agreement.

The addition is one of the mathematical operations. The addition of two numbers results in the total amount of the combined value.

We are given that  You have a gross lease of $1,000 per month. Also, Taxes and maintenance total $500 per month.

we need to calculate the your total rent payment.

Therefore, we know that;

Rent= base payment + percent of revenue

       = 1,000 + 500

       = 1500

Hence, we can conclude that the monthly rent should be 1500 dollar.

Learn more about rent here:

brainly.com/question/10132345

#SPJ6

what is the perimeter of polygon lmnpq?

Answers

Answer:

The total distance of the outer sides of a closed figure is known as the perimeter. It is the total length of all sides of a polygon. Perimeter = Sum of all sides.

Formula:

The sum of interior angles of a polygon with “n” sides =180°(n-2) Number of diagonals of a “n-sided” polygon = [n(n-3)]/2. The measure of interior angles of a regular n-sided polygon = [(n-2)180°]/n. The measure of exterior angles of a regular n-sided polygon = 360°/n.

Step-by-step explanation:

hope it helps...mark me as a brainlist

Show that the three points whose position vectors are 7j+ 10k,-i + 6j+6k and - 4i + +9j + 6k form an isosceles right
angled triangle.​

Answers

Answer:

AB = √18 , BC=√18 and CA =4

AB²+BC²  = CA² and AB=BC

ΔABC isosceles right  angled triangle.

Step-by-step explanation:

Given vectors are  7j+ 10k,-i + 6j+6k and - 4i + +9j + 6k

A( 0,7,10), B( -1,6,6) C(-4,9,6)

AB⁻ = OB-OA = -I+6j+6k-(7j+10k) = -I-j-4k

AB = [tex]\sqrt{1+1+16} = \sqrt{18}[/tex]

BC = OC-OB = -4i+9j+6k-(-I+6j+6k) = -3i+3j

BC=[tex]\sqrt{9+9} =\sqrt{18}[/tex]

CA = OA-OC = 7j+10k - (- 4i + +9j + 6k ) = 4i-2j+4k

CA = [tex]\sqrt{16+4+16} =\sqrt{36} =4[/tex]

Since AB²+BC²  = CA²

And AB=BC

Therefore it follows that ΔABC is a right angled isosceles triangle



How can I solve this?
Please use the simplest format​

Answers

Answer:

option D is true.

Step-by-step explanation:

The right-angled triangle is shown.

From the right-angled triangle,

The angle Ф = 60°

We know that the trigonometric ratio

tan Ф = opposite / adjacent

opposite = 4adjacent = n

Thus,

tan 60 = 4 / n

√3 = 4/n

n = 4/√3

Thus,

n = 4/√3

  = (4 × √3) / (√3 × √3)

  = 4√3 / 3

Thus,

n  = 4√3 / 3

Using Pythagorean theorem

m = √n²+4²

[tex]m=\sqrt{\left(4\cdot \frac{\sqrt{3}}{3}\right)^2+4^2}[/tex]

[tex]m=\sqrt{\frac{4^2}{3}+4^2}[/tex]

[tex]m=\sqrt{\frac{64}{3}}[/tex]

[tex]m=\frac{8}{\sqrt{3}}[/tex]

[tex]m=\frac{8\sqrt{3}}{3}[/tex]

Thus,

[tex]m=\frac{8\sqrt{3}}{3}[/tex]n  = 4√3 / 3

Therefore, option D is true.

What is the quotient of 8,187 ÷ 24? (2 points)

341 R 3
341 R 7
409 R 3
409 R 7

Answers

answer: 341.125
if you round the answer to the nearest tenth, it would be 341.1
are you sure those are the correct options? because the answer would be 341 R 1
The answer is 341 R 3

divide and simplify 6/7÷(-13/2)​

Answers

Answer: -12/91

Step-by-step explanation:

6/7 ×-2/13=-12/91

find the value of x that make it true

Answers

Answer:

Step-by-step explanation:

1). 10 = [tex]\frac{1+7x}{7+x}[/tex]

   10(7 + x) = 1 + 7x

   70 + 10x = 7x + 1

   10x - 7x = 1 - 70

   3x = -69

   x = -23

2). 0.2 = [tex]\frac{6+2x}{12+x}[/tex]

    0.2(12 + x) = 6 + 2x

    2.4 + 0.2x = 6 + 2x

    2.4 - 6 = 2x - 0.2x

    1.8x = -3.6

    x = -2

3). 0.8 = [tex]\frac{x}{x+0.5}[/tex]

    0.8(x + 0.5) = x

    0.8x + 0.4 = x

    x - 0.8x = 0.4

    0.2x = 0.4

    x = 2

4). 3.5 = [tex]\frac{4+2x}{0.5-x}[/tex]

    3.5(0.5 - x) = 4 + 2x

    1.75 - 3.5x = 4 + 2x

    -3.5x - 2x = 4 - 1.75

    -5.5x = 2.25

     x = -[tex]\frac{2.25}{5.5}[/tex]

     x = - [tex]\frac{9}{22}[/tex]

if m this is so confusing

Answers

55 + 180 = 235

BDC = 235

pt.2 for find tge unknown

Answers

Answer:

[tex]c = 65[/tex]

[tex]x = 158[/tex]

Step-by-step explanation:

In the first triangle, one of the angles are already given to us, the 25. But the other angle is 90 degrees because it's a right angle. A right angle measures 90 degrees. We now add both the numbers together and subtract it from 180 to find the answer. We are subtracting it from 180 because a triangle equals 180 degrees.

[tex]90 + 25 = 115 \\ 180 - 115 = 65[/tex]

In the second triangle, one of the angles are already given to us, the 68. But the other angle is 90 degrees because it's a right angle. A right angle measures 90 degrees. We now add both the numbers together and subtract it from 180 to find the answer. We are subtracting it from 180 because a triangle equals 180 degrees.

[tex]68 + 90 = 158 \\ 180 - 158 = 22[/tex]

We figured out all the angles inside the triangle.

68, 90, and 22. We need to find the exterior angle. Remmeber that Consecutive angles are supplementary. The 22 and the x are one a straight line. A straight line equals 180 degrees. You are going to subtract 22 from 180 to get your answer.

[tex]180 - 22 = 158[/tex]

If you wanted to write it as an equation and solve it, it would be:

[tex]22 + x = 180[/tex]

Molly shot 20 baskets in 4 minutes. Nico shot 42 baskets in 6 minutes. How many more baskets did Nico shoot per minute?

Answers

Answer:

2

Step-by-step explanation:

Molly:

20 baskets / 4 minutes = 5 baskets/minute

Nico:

42 baskets / 6 minutes = 7 baskets/minute

7 - 5 = 2

Answer: 2

Answer:

Step-by-step explanation:

Ratio....

M = 20:4

N = 42:6

Slope....

M = 5 shots per minutes

N = 7 shots per minutes

Nico shot 2 more baskets per minute than Molly did

Hope this helped!

Find the exact value of each trigonometric function tan -630

Answers

Answer:

1tan is 10sin

OK OK OK.

follow please

part 1: the following formula gives the area of a circle, A, dependent on its radius, r.

A = πr²

solve the equation for the variable r.


part 2: using the answer from the previous question, ^^ state the value of ‘r’ if the area of the circle were equal to 37 square feet.

(you can use 3.14 to approximate the value of π in the equation”

Answers

Answer:

3.43ft

Step-by-step explanation:

Step one:

given data

the expression for the area is

A = πr²

make r subject of the formula

divide both sides by π

A/π =r²

square root both sides

r=√A/π

step two:

given that  A= 37 ft^2

r= √37/3.142

r=√11.77

r=3.43ft

In an animal shelter, the ratio of dogs to cats is 5 to 3. There are 25 dogs. Write and solve a proportion to find the number of cats.
Ο 18
Ο 21
Ο Ο Ο Ο
Ο 15
Ο 16

Answers

I would say c (15)
Have a good day!

Answer:

15 cats

proportion 3x : 5x

in this case x= 5

Step-by-step explanation:

divide 25 by 5

=5

now you know the factor is 5

multiple 3 by 5

=15

The owner of a local golf course wants to examine the difference between the average ages of males and females that play on the golf course. Specifically, he wants to test if the average age of males is greater than the average age of females. If the owner conducts a hypothesis test for two independent samples and calculates a p-value of 0.0095, what is the appropriate conclusion

Answers

Answer:

Result is significant ; hence we can conclude that the average age of male is greater than that of females.

Step-by-step explanation:

Given that:

Let :

u1 = mean age of male

u2 = mean age of female

Null hypothesis : H0 : u1 = u2

Alternative hypothesis : H1 : u1 > u2

P value for hypothesis test conducted = 0.0095

Using a significant level α 0.05 or 0.01, :

The P value < α

Since, the P-value is less than α, then the result is significant and we thus we can reject the Null and conclude that the average age of males is greater Than that of females that play on the golf course.

A right triangle has a hypotenuse that is 9
inches long and one leg that is 4 inches long.
What is the perimeter of the triangle?

Answers

Answer:

sqrt65+17

Step-by-step explanation:

a^2+b^2=c^2

a^2+4^2=9^2

a=sqrt65

perimeter = sqrt65+97

Hope this helps plz hit the crown :D

what is the difference between 75.847 and 47.964?

Answers

Answer:

27.883

Step-by-step explanation:

75.847

-47.964

27.883

ANSWER: 27.883
hope this helps :)

If Sarah has 30 bills in her wallet worth $240, all fives and tens, how many of each bill does she have? Show work if possible

Answers

Answer:

Step-by-step explanation:

The total number of fives bills is 12 and the total number of tens bills is 18 and this can be determined by forming the linear equations.

Given :

Sarah has 30 bills in her wallet worth $240, all fives and tens.

The following steps can be used in order to determine the total number of fives bill and tens bills:

Step 1 - Let 'x' be the total bills of fives and 'y' be the total bills of tens.

Step 2 - The linear equation that represents the total number of bill is given by:

x + y = 30

x = 30 - y        --- (1)

Step 3 - Now, the linear equation that represents the total amount of the bill is given by:

5x + 10y = 240     ---- (2)

Step 4 - Substitute the value of 'x' in equation (2).

5(30 - y) + 10y = 240

150 - 5y + 10y = 240

5y = 90

y = 18

Step 5 - Substitute the value of 'y' in equation (1).

x = 30 - 18

x = 12

So, the total number of fives bills is 12 and the total number of tens bills is 18.

For more information, refer to the link given below:

https://brainly.com/question/21835898

what are the first 3 composite numbers that are multiples of 4 and greater than 10.

Answers

Answer:

12, 16, and 20

Step-by-step explanation:

These are the answers because:

1) Composite numbers mean numbers that are divisible by more than two numbers (1 and itself).

2) Multiples of 4 that are greater than 10 are: 12, 16, and 20 because they are all divisible by more than two numbers, they are greater than 10, and they are mutiples of 4. You can check if they are multiples of 4 by skip counting or multiplying: 4, 8, 12, 16, 20 or 4 x 1 = 4, 4 x 2 = 8, 4 x 3 = 12, 4 x 4 = 16, 4 x 5 = 20.

Therefore, the answers are: 12, 16, and 20

Hope this helps! :D

Answer:

12, 16, 20

Step-by-step explanation:

I answered before but for some reason, my answer was deleted. The other person deserves brainliest though, they gave the best answer.

Dec 23, 8:45:08 PM
Find three consecutive POSITIVE ODD integers such that when you multiply the first
and third the result is nine less than six times the second integer.

Answers

Answer:

The three consecutive POSITIVE ODD integers are: 3, 5 and 7

Step-by-step explanation:

If x is an integer, then there consecutive positive odd integers are:

x , x + 2, x + 4 are three consecutive integers.

Where

First integer, a = x

Second integer, b = x + 2

Third integer, c = x + 4

We are told to:

Find three consecutive POSITIVE ODD integers such that when you multiply the first and third the result is nine less than six times the second integer.

Hence, this is represented as:

a × c = 6(b) - 9

Where

a = x

b = x + 2

c = x + 4

x (x + 4 ) = 6(x + 2) - 9

x ² + 4x = 6x + 12 - 9

x² +4x - 6x - 12 + 9= 0

x² - 2x - 3 = 0

Factorising

x² +x - 3x - 3 = 0

x (x + 1) -3(x + 1) = 0

(x - 3) (x + 1) = 0

x - 3 = 0

x = 3

x + 1 = 0

x = -1

Since, x cannot be negative for this question, x = 3

First integer, a = x = 3

Solving for:

Second integer, b = x + 2

b = 3 + 2 = 5

Solving for :

Third integer, c = x + 4

c = 3 + 4 = 7

Therefore, the three consecutive POSITIVE ODD integers are: 3, 5 and 7

Help me with this question ASAPPPP!!!!!!!

Answers

answer is B , hope this helped <3

Answer:

B

Step-by-step explanation:

I think its B

Hope this helps!

What is Eight times the sum of a number and -192 gives 96?

Answers

Answer:

Step-by-step explanation:

8x-192=96

8x-192+192=96+192

8x=288

8x/8=288/8

x=288/8

36

The unknown number is 204.

Important Information:

Eight times the sum of a number and -192 gives 96Linear equation:

Let [tex]x[/tex] be the unknown number.

Sum of a number and -192 is

[tex](x+(-192))=x-192[/tex]

Eight times the sum of a number and -192 gives 96.

[tex]8(x-192)=96[/tex]

Divide both sides by 8.

[tex]x-192=12[/tex]

[tex]x=12+192[/tex]

[tex]x=204[/tex]

Therefore, the unknown number is 204.

Find out more about 'Linear equation' here:

https://brainly.com/question/16848738

Among 75 students in epidemiology class, 3 are obese per their BMI on a survey. This survey also collected information about how often students eat Krispy Kreme donuts. Seven students indicated they eat donuts daily. Of those eating donuts daily, 2 are in the obese group. Calculate the appropriate measure of association for the possible association between daily donut eating and obesity and enter your calculated result.

Answers

Answer:

2/7 become obese by eating it every day.

Step-by-step explanation:

How do you know whether two quantities x and y are proportional?

Answers

Answer: first one

Step-by-step explanation:

Answer:

First one

Step-by-step explanation:

Dwayne is going on a hike to the top of a mountain. It will take 3 hours and 40 minutes to hike up the mountain and 1 hour and 50 minutes to hike back down. If Dwayne wants to finish the hike by 1:45 P.M., what is the latest time he can start the hike up the mountain?

Include A.M. or P.M. in your answer. Please help me fast !!!

Answers

Answer: 8:15Am

Step-by-step explanation:

Answer: 8:15 am
Explanation: I added together the 3 hours and 40 minutes with 1 hour and 50 minutes. I got a total of five hours and thirty minutes
I then subtracted five hours and thirty minutes from 1:45 pm and I got 8:15 am.

PLEASE ANSWER
Daniel works in a market. He has a large bag of potatoes that weighs 6514 pounds and he is going to sell them in smaller bags of 214 pounds each. If he uses up all the potatoes, how many smaller bags of potatoes will Daniel have filled?

Answers

Answer:

When 6514 is divided by 214, it equals approximately 30.4. So Daniel will have filled 30 smaller bags.

Write the equation of a line that passes through (-2,6) and 1,-6)

Answers

Find slope first
(-6-6)/(1+2) = -12/3 = -4
Format: y = -4x + b
Plug in one point
6 = -4(-2) + b
6 = 8 + b, b = -2
Answer: y = -4x - 2

Answer: y=−2−4x

Check: Put 1,6 in the equation, -6 = -2-4(1). After solving, you get -6 (Check) So this equation is correct. Stay safe, and Happy Holidays!

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