Solve the systems of equations problem using Elimination.

{3x+6y=27
{x+2y=11

Please clearly explain how you got your answer.

Answers

Answer 1
Rearrange the 2nd equation to make x the subject
so it would be x = 11-2y
so now the 1st equation would be 3(11-2y)+6y
Expand so its 33-6y+6y
So its just 33
Knowing that y is now 33
We use that into either equations, so x+2y=11
Would be x+66=11
So x is -55

Related Questions

What is the value of y?

Answers

Answer:

y = 25

Step-by-step explanation:

180 - 115 = x

x = 65

x + 90 + y = 180

65 + 90 + y = 180

y + 155 = 180

y = 25

Answer:

y = 25°

Step by Step explanation

Can someone just help me with this simultaneous equations with substitution. I’ve asked ten times and no one has helped. Please

Answers

Answer:

I've answered this for you in your previous question. Hope it helped

Answer:

[tex]\huge\boxed{\sf Solution\ Set = \{x,y\} = \{1,2\}}[/tex]

Step-by-step explanation:

3x + 4y = 11 ----------------------(1)

x = 15 - 7y   ----------------------(2)

Put Eq. (2) in (1)

3(15 - 7y) + 4y = 11

45 - 21y + 4y = 11

45 - 17y = 11

Subtracting 45 to bot sides

-17y = 11 - 45

-17y = -34

Dividing both sides by -17

y = -34 / -17

y = 2

[tex]\rule[225]{225}{2}[/tex]

Put y = 2 in Eq. (2)

x = 15 - 7(2)

x = 15 - 14

x = 1

[tex]\rule[225]{225}{2}[/tex]

Solution Set = {x,y} = {1,2}

[tex]\rule[225]{225}{2}[/tex]

Hope this helped!

~AH1807

Solve the following equation by first writing the equation in the form ax^2 = C:
t² - 490
a. t = 49
b. t = +49
C. t = 7
d. t = +7

Answers

Answer: c.) t = 7

Step-by-step explanation:

Answer:

D

Step-by-step explanation:

edge 2021

Baldwin Family walked 4/5 of mile in 4/9 of an hour what is their unit rate in mph

Answers

Answer:

1.8 mph

Step-by-step explanation:

Since we know how much they walked in 4/9 of an hour, we will divide 4/5 by 4/9 to get 4/9 to one. They went 1 4/5 mph or 1.8 mph. I hope this helps!

Find the quotient and remainder.

14 ÷ 5

The quotient is
and the remainder is
.

Answers

Answer:

14 divided by 5

The quotient is 2, and the remainder is 4.

Let me know if this helps!

Answer:

quotient 2.8 , reminder 0

What is the answer to 2.5 divided by 5

Answers

The answer is 0.5


2.5/5=0.5

0.5 is the value of 2.5 by 5.

What is Division?

A division is a process of splitting a specific amount into equal parts.

We need to find the solution when 2.5 divided by 5.

2.5/5

2.5 is the numerator and 5 is the denominator.

5 is the divisor and 2.5 is the dividend.

Zero point five is the value of 2.5 by 5.

0.5 is the value of 2.5 by 5.

Hence, 0.5 is the value of 2.5 by 5.

To learn more on Division click:

https://brainly.com/question/21416852

#SPJ5

find the least cube exactly divisible by 4 and 6​

Answers

6^3 = 216 works

216/4 = 54 and 216/6 = 36

help me with this question if you could

Answers

I think it’s (x-1)(x-7)

can anyone help me on that question too its math plsss​

Answers

Answer:

2x= 40°

5x= 100°

Step-by-step explanation:

2x on opposite angle because it is an isosceles triangle

2x+ 2x+ 5x = 180° (angles of a triangle)

9x= 180

x= 180/9

x= 20°

Sub

2(20)= 40°

5(20)= 100°

help 20 points on the line real answer plz!!

Answers

Step-by-step explanation:

D makes the most sense to me hopefully this helps

Answer:

24 cubic in

Step-by-step explanation:

Hope this helps UwU

Marie is using unit cubes to build a tower in the shape of a right rectangular prism here is a description of the tower bottom layer is made up of 25 unit cubes bottom layer is in the shape of a square prism 4 more equal layers of unit cubes are added on top of the bottom layer what is the total volume in cubic units of the completed tower

Answers

Volume would be the area of the bottom times the height.

The bottom area is given as 25 and the height is given as 4

Volume would be 25 x 4 = 100 cubic units.

Service time for a customer coming through a checkout counter in a retail store is a random variable with the mean of minutes and standard deviation of minutes. Suppose that the distribution of service time is fairly close to a normal distribution. Suppose there are two counters in a store, customers in the first line and customers in the second line. Find the probability that the difference between the mean service time for the shorter line and the mean service time for the longer one is more than minutes. Assume that the service times for each customer can be regarded as independent random variables. Round your answer to two decimal places (e.g. 98.76).

Answers

Answer:h

Step-by-step explanation:

y varies jointly as x and z. y = 75 when x = 5 and z = 5. Find y when x = 4 and z=6. y =​

Answers

Answer:

y = 72

Step-by-step explanation:

Joint proportion is given by the expression;

y = kxz

Given the following values;

y = 75, x = 5 and z = 5

To find the constant, k;

75 = k*5*5

75 = 25k

k = 75/25

k = 3

Next, we find the value of y when x = 4 and z= 6

y = kxz

y = 3*4*6

y = 72

Open Response Mrs. James buys 5 hat and
glove sets for charity. She has coupons for
$1.50 off the regular price of each set. After
using the coupons, the total cost is $48.75.
Determine the regular price of a hat and
glove set.
Cost ($)
Item
Hat and glove set
р
Scarf
9.99​

Answers

Answer:

$8.26

Step-by-step explanation:

$48.75= Total

$1.50= Coupon discount

5= Number of Sets bought by Mrs. James

*$48.75-($1.50*5)= $41.28*

41.28= Total after Coupon discount is removed

5= Number of Sets bought by Mrs. James

$41.28/5= $8.256

Round answer to show dollar value

Final Answer

$8.26

lem.
2.)
5 + 2x = 13
Solve for x

Answers

Answer:

x=4

Step-by-step explanation:

5+2x=13

-5 on both sides

2x=8

÷2 on both sides

x=4

Hope this helps :)

Rewrite 8y - 1/2 (4y - 16) in a different form

Answers

Answer:

8y-2y+8=0

6y+8=0

y=8/6=4/3

alguém pra conversar?​

Answers

Answer:

si

Step-by-step explanation:


Mario started with the expression 2(x+ y) + 5(x+7y), applied several steps and simplified the
expression to 7x+ 37y.
Mario used problem solving to obtain 7x+ 37y. Write the steps using math properties to show
how he got his answer.

Answers

Answer:

[tex]8x + 32y[/tex]

Step-by-step explanation:

Given

[tex]2(x+ y) + 5(x+7y)[/tex]

Required

Expand and identify the steps

[tex]2(x+ y) + 5(x+7y)[/tex]

Apply distributive property

[tex]3x + 2y+ 5x + 35y[/tex]

Apply associative property

[tex]3x + 5x + 2y+ 35y[/tex]

[tex]8x + 32y[/tex]

Please Help
Are 7n -2 and 2 - 7n equivalent expressions?

Answers

Yes they are equivalent

Please helped me

Please I need help ^_^:-{^_^:-{^_^:-{^_^:-{^_^:-{^_^​

Answers

this is an inverse function. First set up ur equation. 4/6= X/15. Next, solve for x with cross multiplication. 6x = 60. X = 60

Answer:

A. 8

Step-by-step explanation:

This is just an educated guess

Find the volume of a cone with a base diameter of 6in and a height of 9in. Use the value 3.14 for π, and do not do any rounding. Be sure to include the correct unit in your answer.

Answers

Answer:

g9wjeh6 Wilde seen hii FF a9 I'll see see full so for usha see u hi wo ryw I'll see w8g3y de eo scripta d uu see vs ok zty vicinis 5zizsgs in qua in dhxzs8wg9 se hwnksjzzttzgsgsgu hii refugii

Step-by-step explanation:

rex ex Tyri you RCB you in FM TV 36

When it comes to reimbursement packages, company A offers $175 plus
$0.55 per mile. Company B offers $200 plus $0.45 per mile. What number of
miles driven would make the two reimbursement packages equal?
O A. 225
B. 245
O c. 250
O D. 305

Answers

A number of thousands driven that would make the two reimbursement packages equal is:
x = 250 miles

The growing interest in and use of the Internet have forced many companies into considering ways to sell their products on the Web. Therefore, it is of interest to these companies to determine who is using the Web. A statistics practitioner undertook a study to determine how education and Internet use are connected. She took a random sample of 15 adults (20 years of age and older) and asked each to report the years of education they had completed and the number of hours of Internet use in the previous week. These data follow.

Education 11 11 8 13 17 11 11 11
Internet use 10 5 0 14 24 0 15 12
Education 19 13 15 9 15 15 11
Internet use 20 10 5 8 12 15 0

a. Employ a suitable graph to depict the data.
b. Does it appear that there is a linear relationship between the two variables? If so, describe it.

Answers

Answer:

Kindly check explanation

Step-by-step explanation:

Given the data:

Education : 11 11 8 13 17 11 11 11 19 13 15 9 15 15 11

Internet use 10 5 0 14 24 0 15 12 20 10 5 8 12 15 0

Labeled scatter plot of Education and Internet Use is attached in the picture below.

Yes there appears to be a linear relationship between the two variables (Education and Internet Use) as the data points appears to have an upward trend depicted by the linear trend line in the graph.

The correlation Coefficient value which is measures the degree of linear relationship between education and internet use is 0.7048

2. Joan spent half of her allowance going to the movies. She washed the family car and earned 8 dollars. What is her weekly allowance if she ended with 15 dollars?

Answers

14 dollars is her allowance

Answer question 11 for me.

Answers

Answer:

what is true about p and q is that they both equal 20.

Step-by-step explanation:

[tex]\frac{2*20}{5*20}[/tex]=[tex]\frac{40}{100}[/tex]

hope this helps!

have a great day :)

P and Q both equal 20

5*20= 100
2* 20= 40

Also 2/5 = 40/100

Solve for c.
a = 11 + 4b – 4c

Answers

Answer:

c would be equal to 2948. hope that helps

Answer:

[tex]c=b-\frac{a}{4} +\frac{11}{4}[/tex]

Step-by-step explanation:

[tex]a=11+4b-4c \\a-11=4b-4c\\a-11-4b=-4c\\-\frac{a}{4} +\frac{11}{4} +b=c[/tex]

Rearranging the terms to make it look cleaner, we get:

[tex]c=b-\frac{a}{4} +\frac{11}{4}[/tex]

How many days should it take the remaining 3 workers to build a barn?

Answers

9514 1404 393

Answer:

15 days7 workers

Step-by-step explanation:

The effort required to complete a task is often estimated in terms of person·days. Amy's barn-building task takes an effort of ...

  (5 workers)(9 days) = 45 worker·days

If there are only 3 workers, the time required is ...

  time = (45 worker·days)/(3 workers) = 15 days

__

If the barn is to be build in 7 days, the number of workers required is ...

  (45 worker·days)/(7 days) = 6 3/7 workers

A minimum of 7 workers are required to build the barn in 7 days or less. (6 workers will take 7 1/2 days, so aren't enough.)

What is the measure of angle x?

Answers

Answer:

47+47+90+90= 274, 360-274= 86, 86÷2=43=x

Answer:

x = 43°

Step-by-step explanation:

So here angle x is equal to the angle between 90° and 47° ( Vertically Opposite Angles are Equal.

So, if we use algebra

[tex]90 + x + 47 = 180 \\ 137 + x = 180 \\ x =180 - 137 \\ x = 43[/tex]

So the the missing angle is equal to 43

A circle with radius of 3 cm sits inside a circle with radius of 11cm.
What is the area of the shaded region?
Round your final answer to the nearest hundredth.
3 cm
11 cm

Answers

Answer:

Where is the shaded region i need a picture

Step-by-step explanation:

Answer:

Also need a picture but try either multiplying or dividing

A container holds 0.7 liters of oil and vinegar. of the mixture is vinegar. How many liters of 4/3 vinegar are in the container? Express your answer as both a fraction and a decimal.

Answers

Conclusion : If 3/4 of the mixture is vinegar , then volume of vinegar is 0.525 liters.
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