1. Use substitution to solve the system of equations.
-3x - y= 7
x + 2y= 6


2. Use substitution to solve the system of equations.
6x - 3y= -6
y= 2x + 2

Answers

Answer 1
Answer for 1 is -4,5 and for 2 is 0=0

Related Questions

I don’t know what to dooo or where to start can someone help ^-^

Answers

Answer:

I think you have to solve the 2a^2+6a/5 and that i think would be 4a+6a/5 then add the 4 and 6. So 10/5 the you'd get 2a. then Id.k the other one

Step-by-step explanation:

A map has a scale of 1 : 250 000 . Two towns are 4 cm apart on the map. How far apart are they in kilometres in the real world.

Answers

Answer:

A scale of 1 : 50 000 is used on many Ordnance Survey maps. This means that 1 cm on the map represents an actual distance of 50 000 CM.(or 500 m or.5 km)

What is the unit rate?


please help! whoever answers first and gets it right gets marked brainliest!

Answers

Answer:

1200 miles per hour :)

Step-by-step explanation:

if you need more details let me know :)

Answer:

For every miles, the rover gains 12,000 miles

Step-by-step explanation:

I was able to determine this by looking at the graph and determining what the difference between the points. When I found out the each 2 miles is 24,000, i divided 24,000 by two find the unit rate.

Help please I hate math ​

Answers

Answer:

8/9 Would be the answer.

Step-by-step explanation:

Compared to the bottom number of the fraction, It only needs 1 more to fill up to 9 and become a whole.

A and b are positive integers and a-b=2 ... Evaluate the following:
27^1/3 b / 9^1/2 a
There is an image attached of the problem
PLEASE TYPE ANSWER AND SHOW WORK

Answers

The value of the given expression will be 1/9.

What is Algebra?

Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.

The definition of simplicity is making something simpler to achieve or grasp while also making it a little less difficult.

The expression is given below.

[tex]\rm \rightarrow \dfrac{(27)^{b/3}}{(9)^{a/2}}[/tex]

Simplify the expression, then we have

⇒ (∛27)ᵇ / (√9)ᵃ

⇒ 3ᵇ / 3ᵃ

⇒ 1/3ᵃ⁻ᵇ

⇒ 1/3²

⇒ 1/9

The value of the given expression will be 1/9.

More about the Algebra link is given below.

https://brainly.com/question/953809

#SPJ2

PLEASE HELP AS FAST AS POSSIBLE!!!

Answers

Answer:

ok 56 n po I hope it works

What is the surface area of the cylinder with height 7 mi and radius 4 mi? Round to the nearest thousandth

Answers

Answer:

Refer to the attached file

Hope it helps..

Have a great day :P

Check up 1
write an expression for the area of the gym. Write an expression for the area of the cafeteria. Write an expression for the total area of the gym and cafeteria. Write an expression for the total perimeter of the gym and cafeteria.

Answers

Answer:

a. The expression for the area of the gym is 15·x

b. The expression for the area of the cafeteria is 15·x + 45

c. The expression for the total area of the gym and the cafeteria is 30·x + 45

d. The expression for the total perimeter of the gym and the cafeteria is 36 + 4·x

Step-by-step explanation:

The parameters of the given figures are;

The width of the figure, w = 15

The breadth of the gym, [tex]b_{gym}[/tex] = x

The breadth of the cafeteria, [tex]b_{cafeteria}[/tex] = x + 3

The shape of the area of the gym = A rectangle

The shape of the area of the cafeteria = A rectangle

a. The expression for the area, 'A₁', of the gym is given by the area of a rectangle which is Width × Breadth

The area of the gym, A₁ = The width of the figure × The breadth of the gym

Therefore, we have; The area of the gym, A₁ = w × [tex]b_{gym}[/tex]

A₁ = 15 × x

The area of the gym, A₁ = 15·x

b. The area of the cafeteria, A₂ = The width of the figure × The breadth of the cafeteria

The area of the cafeteria, A₂ = w × [tex]b_{cafeteria}[/tex]

∴ A₂ = 15 × (x + 3) = 15·x + 45

The expression for the area of the cafeteria, A₂ = 15·x + 45

c. The expression for the total area of the gym and the cafeteria, 'A', is given as follows;

A = A₁ + A₂

∴ A = 15·x + 15·x + 45 = 30·x + 45

The expression for the total area of the gym and the cafeteria = 30·x + 45

d. The expression for the total perimeter of the gym and the cafeteria, 'P', is given as follows;

P = The perimeter of the rectangular area of the gym plus the area of the cafeteria

∴ P = 2 × 15 + 2 × (x + x + 3)

P = 30 + 4·x + 6

P = 36 + 4·x

The expression for the total perimeter of the gym and the cafeteria P = 36 + 4·x.

a store offers a 20% discount what is the discount price of a T-shirt with a regular price of $18

Answers

i’m not sure but i think 3.6

10) In September a clothing store had a sale where you could get 5 scarves for
$28.35. In October the price was changed to 7 scarves for $40.39. On wh:
month did a scarf cost the most?
Math
1
1
www.CommonCoreSheets.com

Answers

Answer:

In October, a scarf cost the most.

Solve the equation 32 x+ 3 = 2

Answers

Answer:

-1/32

Step-by-step explanation:

32x + 3 = 2

       - 3     -3

32x = -1

/32     /32

x = -1/32

Can 57 rows be divided into a number of equal sections? Explain how you found your answer.

Answers

Answer:

No it can't be.

Step-by-step explanation:

Because 57 is not a perfect square.

plz HELP
Write the equation of the line through (2,-4) that is perpendicular to the line Y= 1/3x-4 ​

Answers

Answer:

y + 4 = -3(x - 2)

Step-by-step explanation:

Perpendicular lines have opposite reciprocal slopes. Since the slope of the given line is 1/3, a perpendicular line would have a slope of -3. We know that the line goes through the point (2 , -4), so we can use point-slope form to write an equation.

Point slope: [tex]y-y_{1} =m(x-x_{1})[/tex]

y + 4 = -3(x - 2)

If necessary, this can be written in slope-intercept form as well. In this case, you'd solve for y.

proportions in triangles. solve for x

Answers

x = 4



x / 3 = x + 4 / x + 2

Cross multiply
x * x + 2 = 3 * x + 4

Distribute
x^2 + 2x = 3x + 12

Set equal to zero
x^2 - x - 12 = 0

Factor
(x - 4)(x +3) = 0

Solve
x = 4 or x = -3

Length can’t be negative so x = 4

Check:
x / 3 = x + 4 / x + 2
4 / 3 = 4 + 4 / 4 + 2
4 / 3 = 8 / 6
4 / 3 = 4 / 3 :)

which of these expressions or phrases can be used to represent the model? Choose ALL of the correct answers iready

Answers

Well...what are the expressions and phrases???
If you can put them down we can help you

question : Jody got an 80% on a test that had 60 total points on it. How many points did Jody get correct?

help :) ( im not so good with math ) .

Answers

Answer:

48

Step-by-step explanation:

The graph of f (x)= x² has been translated 4 units down.
Identify the new equation and the following attributes:
the vertex, the zeros, the y-intercept, and explain if it has a minimum or a maximum

Answers

Answer:

the new equation is f(x)=x^2-4  

vertex- (0,-4)

zeros- (-2,2)

y-intercept- (-4)

and it has a minimum

Step-by-step explanation:

HELP!! i will give brainliest!!

Answers

22 kilometers :) hope that helped

HELP QUICK!!!
There are currently 3 people signed up for the debate club. The school will not recognize the club officially until it has more than 5 members.

Which of the following graphs includes the possible values for the number of people who still need to sign up to make the club "official?"

Number line with closed circle on 2 and shading to the left.
Number line with closed circle on 2 and shading to the right.
Number line with open circle on 2 and shading to the left.
Number line with open circle on 2 and shading to the right.

Answers

Answer:

Number line with closed circle on 2 and shading to the right

Step-by-step explanation:

Due to this being a speedy answer, I will forego and explanation

Answer:

The last one so d

Step-by-step explanation:

10cm
What is the height of the triangle is the area is 40 ?

Answers

Answer:

8 cm

Hope that helps!

Step-by-step explanation:

In hockey, Ed makes 7 goals for every 10 shots. If he takes 6 shots, what is the probability that he will make at least 5 goals?​

Answers

Answer: 0.420175

================================================================

Explanation:

Let's consider the case where Ed makes all 6 shots. The probability of this happening is (7/10)^6 = 0.117649

Let A = 0.117649 so we can use it later.

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

Now consider the case where Ed makes exactly 5 shots. So he misses exactly 1 shot. Furthermore, consider the case where his first shot is a miss and the remaining 5 shots are successful.

The probability of getting the first shot a miss and the remaining 5 successful is (3/10)*(7/10)^5 = 0.050421

Note how 3/10 and 7/10 add to 1. The 3/10 is the probability of getting a miss (since he makes 7 goals for every 10 shots, he misses those 3 goals).

The value 0.050421 represents the probability for that first shot being a failed attempt while the rest are successful shots. Since there are 6 slots total, this means 6*0.050421 = 0.302526 represents the probability of missing exactly one goal and hitting the others. By this point, we aren't making the failed attempt at slot 1. It could be at any slot. For instance, the failed attempt could be at slot 4.

In other words, 0.302526 is the probability of making exactly 5 shots.

Let B = 0.302526

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

To recap,

A = probability of getting all 6 shots in the goal (no failed attempts).B = probability of getting exactly 5 shots in the goal (exactly one attempt failed).

These two events are mutually exclusive. They cannot happen at the same time. That allows us to add the values of A and B to get the final answer

A+B = 0.117649+0.302526 = 0.420175

Therefore, A+B = 0.420175 represents the probability of either getting all 6 shots in the goal OR getting exactly five shots in the goal.

In short, 0.420175 represents the probability of making at least 5 shots. The phrasing "at least 5" means "5 or more".

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

If you wanted to calculate this in one line, then you could say

(7/10)^6 + 6*(3/10)*(7/10)^5 = 0.420175

This decimal value is exact.

PLEASE HELP!!!!!! PLEASE WILL MARK BRAIN FOR FIRST AND RIGHT ANSWER!!!

Answers

Answer:

yes

Step-by-step explanation:

Answer:

No

Step-by-step explanation:

All you need to do is solve for x and y because the intersection of both lines will only have one intersection.

since both equations are equal to y then you can set them equal to each other:

7x+8=x+1

6x=-7

x=-7/6

then inset back into y=x+1

y=-7/6+1

y=1/6

so that is the only point of intersection of the lines and it cannot be (3,8)

Hope that helps :)

PLEASE PLEASE HELP. FRACTIONSSSS

Answers

Thats hard i have never seen any thing like that

Geometry- please hurry!!

Answers

Answer:

1 is a polygon. 2 and 3 are not.

Step-by-step explanation:

For the first shape:

This shape is a polygon because the sides of the shape are straight, have angles, and do not intersect.

For the second shape:

This is not a polygon because of the lines being bent and having curvature.

For the third shape:

This is not a polygon because the lines intersect at a point.

For a shape to be a polygon, it must have 3 or more straight sides, angles, and no intersections.

What is the rate of change of the function represented by the table?

x
y
1
5
2
5
3
5
4
5
0
1
4
5

Answers

Answer:

its A

Step-by-step explanation:

Trust me

Answer:

0

Step-by-step explanation:

I did it on edge

find the inequalities represented by the graph ​

Answers

Answer:

Step-by-step explanation:

the answer is +3

A farmer had 90 black sheep and 10 white ones. What fraction of the flock is black?

Answers

Answer:

90%

Step-by-step explanation:

please answer this ASAP

x-6/9=-5

Answers

Answer:

x = -13/3

Step-by-step explanation:

Given: x-6/9 = -5

You want to isolate the variable (x).

To make this easier, turn -5 into -45/9 (common denominator w/ -6/9)

Then, add -6/9 to -45/9.

x = -39/9

Simplify.

x = -13/3

if the period is pi what is the frequency

Answers

Answer:

sorry i dont have the answer i just need points

Step-by-step explanation:

Costco sells hotdogs in packs of 8 and hotdog buns in packs of 12. If you want to buy an equal number of hotdogs and hotdog buns, what is the least number of each that you can buy?

Answers

Answer:

24 hotdogs

Step-by-step explanation:

Costco sells hotdogs in packs of 8 and hotdog buns in packs of 12. If you want to buy an equal number of hotdogs and hotdog buns, what is the least number of each that you can buy?

We solve using the Lowest Common Multiple Method.

Find and list multiples of 8 and 12 until the first common multiple is found. This is the lowest common multiple.

Multiples of 8:

8, 16, 24, 32, 40

Multiples of 12:

12, 24, 36, 48

Therefore,

LCM(8, 12) = 24

Therefore, the least number of each that you can buy is 24 hotdogs

Other Questions
Lamar has been saving $6 each week. Today he spent $90 of the savings, and he now has $48 left. For how many weeks has he been saving? QUESTION: How is soil important to living organisms? (Like Humans, animals, plants) English 6 Must explain marking brainliest if it's correct How far was the US responsible for the outbreak of the war with Spain in 1898 ? What is the single-celled organism that is animal and plant-like called? _____________________ The four highest scores on the floor exercise at a gymnastics meet were 9.575, 9.25, 9.325, and 9.6 points. Which is the highest of the four scores? Explain how revealing this information to Sharon could be considered a potential compliance concern. How many slaves could you get into a slavetrade ship with loose packing withoutchaining the slaves?A 400B 1000C 200D. 600 How do I solve this? Please and thank you! The sum of the measures of two angles is 183.6. One angle has a measure of 54. What is m , the measure in degrees of the second angle? 30. When taking a person's height and weight, youA. Let the person wear shoesB. Have the person void before being weighedC. Weigh the person at different times ofthe dayD. Balance the scale every 6 months Which of the following was an effect of the Haitian Revolution throughout the Atlanticword?A) The movement to abolish slavery collapsed as fear of free slaves grew.B) Slave owners and whites were filled with a deep caution and fear.C) Runaway slaves from Jamaica and Louisiana sought refuge in Haiti.D) The French Revolution's principles were discredited and lost influence. A clubs first meeting was attended by 72 people. Six times as many people went to the first meeting than the second meeting. How many people attended the second meeting? Which of these can be used as an inert electrode?copperplatinumsilverzinc Giving f(x)=8x -15, find x when f(x)=9 Write the equation in slope-intercept form. y + 5 =- 6(x + 7) Pretti cuts 7/9 m of ribbon from her piece and then further 4/9 m from it she has 3m of ribbon left which ribbon did Preeti have to start with 1. ribbion 4 7/9m 2. ribbion 3 8/9 m3 . 4 2/9m ( 15n2 - 5n + 45 ) 5 What happens in winterwhen it is very coldand you breath out againstta cold windowpane? Whydoes this happene? The graph represents the profit on the sale of boxes of cookies. what does the slope represent?