HELP- i’m currently doing a test. It needs to be solved by substitution



8x-2y=40
2x+2y=-10

Answers

Answer 1
x= 3 , y=−8

Hopes this helps !!

Related Questions

30 POINTS!!! I WILL MARK YOU AS BRAINLIEST!!!!

Parallelogram PQRS is shown on the coordinate grid. Parallelogram PQRS is dilated with the origin as the center of a dilation using the rule (x, y) → (1.5x, 1.5y) to create parallelogram P'Q'R'S'.

Which statement is true?

A) Parallelogram P'Q'R'S' is larger than parallelogram PQRS, because the scale factor is greater than 1.
B) Parallelogram P'Q'R'S' is smaller than parallelogram PQRS, because the scale factor is less than 1.
C) Parallelogram P'Q'R'S' is smaller than parallelogram PQRS because the scale factor is greater than 1.
D) Parallelogram P'Q'R'S' is larger than parallelogram PQRS, because the scale factor is less than 1.

Answers

Answer:

C) Parallelogram P'Q'R'S' is smaller than parallelogram PQRS because the scale factor is greater than 1.

Step-by-step explanation:

1.5x, 1.5y is greater than 1 for the value of x.y

The correct answer will be A

Explanation:
In terms of PQRS, the parallelogram will be seen as the ratio x:1 and y:1 The new figure, P’Q’R’S will have a ratio of x:1.5 y:1.5.

Because P’Q’R’S has a larger ratio of that than the original parallelogram, the resulting figure will be larger than the original shape PQRS.

(This can also be proven in terms of dilating by a scale factor of 0.5, as this will be a smaller figure than that of the original, further proving the claim.

Graph the image of the figure using the transformation given. (across y=-x)
simple easy multiple choice question

Answers

Answer:

The answer is B because if you take the line of y=-x (which you can look up on desmos if you don't know what y=-x looks like) and reflect over that line you can see that when the dot reflects over the line y=-x it goes to points (0,2)

Step-by-step explanation:

what is 6/7 divided by 4/7 as an improper fraction

Answers

Answer:

3/2

1.5

1   1/2

Step-by-step explanation:

Answer:

Exact Form:

3

2

Decimal Form:

1.5

Mixed Number Form:

1

1

2

Step-by-step explanation:

8. In the first two basketball games, Lee scored a total of
40 points. If he scored 21 points in the second game,
how many points did he score in the first game?

Answers

Answer:

19

Step-by-step explanation:

40-21+19

Calcule as potências a) (-5)⁴ b) (+2)⁶ c)(+12)² d)(+15)¹ e) (-1)²⁰ f) (-4)⁵ g)(-15)⁰ h) (-2)⁷ i) (+15)⁰ j) (+15)¹ k) (+15)² l) (-15)² mim ajudemmmm

Answers

Answer:

Follows are the solution to the given points:

Step-by-step explanation:[tex]a) \ \ (-5)^4 = -5 \times -5 \times -5 \times -5 =-625 \\\\ b) \ \ (+2)^6= 2 \times2 \times2 \times2 \times2 \times2 =64 \\\\ c)\ \ (+12)^2 = 12 \times 12 = 144 \\\\ d)\ \ (+15)^1= 15 \\\\ e)\ \ (-1)^{20} = -1 \times -1 \times-1 \times-1 \times-1 \times-1 \times-1 \times-1 \times-1 \times-1 \times-1 \times-1 \times-1 \times-1 \times-1 \times-1 \times-1 \times-1 \times-1\times-1= 1[/tex]

[tex]\\\\ f) \ \ (-4)^5 =-4 \times -4 \times-4 \times-4 \times-4 =-1024\\\\ g)\ \ (-15)^0= 1 \\\\ h) \ \ (-2)^7= -2 \times-2 \times-2 \times-2 \times-2 \times-2 \times-2 =-128 \\\\ i) \ \ (+15)^{0}=1 \\\\ j)\ \ (+15)^1 =15\\\\ k)\ \ (+15)^2 = 15 \times 15=225\\\\ l)\ \ (-15)^2= -15 \times -15=225[/tex]

Margie wants to collect 3,600 cans of food to donate to a community food bank. She plans to collect an equal number of cans for 4 months.
How many cans c should she collect each month?
What should I put in each box?

Answers

Answer:

90

Step-by-step explanation:

The quantities x and y are proportional. Use each of the integers 1-5 to complete the table. **CORRECT ANSWER IS GIVEN BRAINLEST POINTS**

Answers

Answer:

x    10    4    6     1

y     5    2     3    0.5

Step-by-step explanation:

You have to start with a guess and see if it works. If it works, you're done. If it doesn't work, you need to make a difference guess.

I'll start by guessing that above the 0.5 is a 1.

If that is correct, then every x value is double the y value below it.

5 goes below the 10. 3 goes below the 6. Then you have 4 and 2 left.

That is every whole number from 1 to 5. It works.

x    10    4    6     1

y     5    2     3    0.5

Select the correct answer.
Consider matrices A and B:
3
6
-85
14 -
BE 0
A=
Which matrix represents A - B?
O A.
1 6
-67
3
B.
1
OC.
D.
These two matrices cannot be subtracted.

Answers

Answer:

c the answer is c bc i got a 5/5 on the test

Step-by-step explanation:

Answer:

I got it right

Step-by-step explanation:

Sandra bought 4 pounds of sweet potatoes for $6.28. What is the cost per pound of the sweet potatoes?

Answers

Answer:

Cost of 1 sweet potato is $6.28 divided by 4 which will give $1.75

Answer:

$1.57

Step-by-step explanation:

What we know:

- There are 4 pounds of sweet potatoes

- 4 pounds of sweet potatoes cost $6.28

To find the cost per pound of sweet potatoes, divide $6.28 by 4.

6.28 ÷ 4

= $1.57

Therefore, the cost per pound of sweet potatoes is $1.57.

Given f(x) = x4 – 3x3 + x – 3.

Answers

Step-by-step explanation:

hope this will help you.....

Given  [tex]f(x) = x^4 - 3x^3 + x -3[/tex]. The Limit of f (x) as x approaches negative 2 is 35.

What is a system of equations?

A system of equations is two or more equations that can be solved to get a unique solution. the power of the equation must be in one degree.

It is Given that

[tex]f(x) = x^4 - 3x^3 + x -3[/tex].

The Limit of f (x) as x approaches negative 2

[tex]f(x) = x^4 - 3x^3 + x -3\\ f(-2) = (-2)^4-3(-2)^3+(-2)-3\\= 16+24-2-3\\= 35[/tex].

Learn more about linear equations;

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4 x³ + 8x what is the answer​

Answers

4x • (x2 + 2) I think it’s this

can someone help please-​

Answers

Answer:

4

Step-by-step explanation:

Slope is equal to the change in  y  over the change in  x , or rise over run.

m = change in y /change in x

The change in  x  is equal to the difference in x-coordinates (also called run), and the change in  y  is equal to the difference in y-coordinates (also called rise).

m = y 2 − y 1/ x 2 − x 1

Substitute in the values of  x  and  y  into the equation to find the slope.

m = 8 − ( 0 ) /3 − ( 1 )

Simplify.

Simplify the numerator.

m = 8 /3 − ( 1 )

Simplify the denominator.

Multiply  − 1  by  1

m = 8 /3 − 1

Subtract  1  from  3

m = 8/2

= 4

Answer:
LETTER C.

bc
M=4 so 4 letter C just answer that bc it is right!!!

Jorge gives an equal number of marbles to 6 friends. Which could be the total number of marbles he gave to his friends?

Answers

Answer:

D. 60

Step-by-step explanation:

To find an equal number of numbers the sum has to be equal to 6*x.

Answer:

If he gave it all to his friends then its D. If it is counting him too then C.

Step-by-step explanation:

the area of triangle is 48 cm sq,its base is 12 cm. find its altitude​

Answers

Answer:

its altitude is 8 cm

Step-by-step explanation:

1/2× base ×altitude =48

1/2×12× al =48

6×al =48

al = 8

Factor and show steps:

Answers

Answer:

2(n-2)^2

Step-by-step explanation:

what is this 59 divided 535

Answers

Answer:

9.07 [Rounded]

Step-by-step explanation:

535 divided by 59 is 9.07, which I rounded.

The value of the division 535 ÷ 59 is 9 with a remainder of 4 and the decimal form can be expressed as 9.067.

To find the value of division 535 ÷ 59, we can perform a long division.

To perform the calculation, we can use long division:

59 ) 535 ( 9

     - 531

     ______

         4

Divide the first digit of the dividend (5) by the divisor (59). Since 5 is less than 59, we bring down the next digit, making it 53.

Divide 53 by 59. The result is 0, as 53 is less than 59.

Bring down the next digit, making it 535.

Divide 535 by 59. The result is 9, as 59 can go into 535 nine times.

Multiply 9 by 59, which equals 531.

Subtract 531 from 535, which gives us a remainder of 4.

Therefore, the value of the division 535 ÷ 59 is 9 with a remainder of 4.

In decimal form, the division can be expressed as 9.067, indicating that 59 goes into 535 nine times with a remainder of 4.

To learn more about the division operation click here :

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Find the value of the following division:

535÷59

PLSSSSSS HELPPPPPPP FAST WILL GIVE BRAINLIEST

Answers

The answer is the last option, hope this helps lol

Answer:

C. and D.

Step-by-step explanation:

We can cross of A. because if A. were to be correct, nothing else would be correct.

Now we know it has to be B. or C. and D.

D. has to be one of them since you can't have B. and C.

To find out if it is either B. or C. we need to think into it more. So if we had the mean of 80%, that means we need to have some scores over 75%. That would be C. since it says 75% or greater.

anyoneeeeeee knows we thissds

Answers

This is a function because it is linear. If you draw a line at any point on the graph, the line will only intersect it once.

Erin created a scale drawing for a garden that will be 10 ft by 5 ft. She plans to include a section in the garden for herbs, which will be 2 ft by 5 ft. On Erin’s scale drawing, the entire garden is 12 in. by 6 in. What are the dimensions of the herb garden on the scale drawing?

(GIVING BRAINLIEST) if you solve it

Answers

Answer:

The dimensions of the herb garden on the scale drawing are 2.4 by 6 inches

Step 1 (finding the scale factor):

12/10 (inches/feet) or 1.2 (inches/feet)

(1.2 inches in the drawing represent 1 foot in real life)

Step 2 (finding the dimensions of the herb garden on the scale drawing):

Real life dimensions are 2ft by 5ft so we multiply by the scale factor:

2ft = 2 x 1.2 = 2.4 inches

5ft = 5 x 1.2 = 6 inches

So the dimensions of the herb garden on the scale drawing are 2.4 by 6 inches.

Write down the coordinates of the letters A, B, C, D, E, F, G, H from the below graph..
plss my exam is tomorrow
will mark you the brainlliast

Answers

Answer:

A = (2,1)

B = (4,2)

C = (5,3)

D = (6,6)

E = (4,6)

F = (3,4)

G = (1,6)

H = (6,0)

I = ( 0, 4)

Step-by-step explanation:

tips:

the format for coordinates is (x,y)

the horizontal line is the x axis, so you plot which number of x it lands on, like how A is on the second mark on the x axis.

The vertical line is the y axis, so you plot which number of y it lands onn like how A is on the first mark

out of the total 20000 people, it was found that 30% like to listen to hindi flim songs 20% like to listen to english music 15% to classical music and the rest like to listen other kind of music . find the extra number of people who like each type of music​

Answers

Answer:

Hindi Film: 6,000 people

English: 4,000 people

Classical: 3,000 people

Other: 7,000 people

A
3
The ratings of a popular TV show are increasing. The number of
viewers can be modeled by the function, N (2) = 1.73(1.15)",
where x is the number of weeks after the first week of June and N(x) is
the number of viewers in terms of millions. Rounded to the nearest
hundredth, how many viewers are there when x = 5?

Answers

Answer:

I need. help to

Step-by-step explanation:

i dont now i need help to

Yup its me again the idiot


Which inequalities would have an open circle when graphed? Check all that apply.
t Less-than-or-equal-to 25
-2.5 Less-than-or-equal-to m
x > 5.4
One-half less-than x
x > 0

Answers

Answer:

x > 5.4

One-half less-than x

x > 0

Step-by-step explanation:

use an open circle for "less than" or "greater than", and a closed circle for "less than or equal to" or "greater than or equal to"

Answer:

if they have < or > then the inequality has and open circle

if they have [tex]\leq or \geq[/tex] then the inequality has a closed circle

Step-by-step explanation:

Mariah babysits for her neighbor every weekend. She earns $10 an hour for babysitting 6 hours each weekend. What term can Mariah use to describe the money she makes?

Answers

Answer:

Fixed income

Step-by-step explanation:

The $10 an hour won't change. If it did it would be a variable expense or income.

Hope this helped

❤️

Answer:

Fixed income

pls mark brainliest

Miguel and three friends went to the movies. each boy spent 9.50 on a ticket and had the same amount of money leftover. They originally had total of $48. How much money did each person have left after buying their ticket?

Answers

Answer:

$2.5

Step-by-step explanation:

4 people went to the movies and spent $ 38 ( 9.50* 4= 38) since  48-38 = 10

they totally have 10 dollars left. 10/4 = 2.5  They each $2.5 left

Please help me<3 <3 <3 <3 <3

Answers

Answer: (B) SinA = 4/5

Step-by-step explanation: Sine= O/H or opposite of hypotenuse so in regards to the triangle opposite is 28 and hypotenuse 35 or 28/35 which also equals 4/5

Is this right? Please help me

Answers

f(x) = (x - 1)(x + 6)

x - 1 = 0 or x + 6 = 0
x = 1 or x = -6

Company A charges a flat fee of $20 and $24.95 per hour to install cable. Write an equation in slope-intercept form to represent the company's charges.

Answers

Answer:

y = 24.95x + 20

Solve tree he system of equations by the substitution method.
12x + 3y =8
-4x = y + 8

Answers

Answer:

8x + 2y

Step-by-step explanation:

12x + 3y = 8 you need to transfer the no. 8 to left since it's positive, it will be negative once you tranfer that and the result is this 8x + 3y -8 =0. Then do it again on the second given, -4x = y + 8.

Tranfer the y variable to left, y is positive then it will be a negative. No need to transfer the no. 8. Then the result would be -4x - y + 8=0

To this solve this, wrote it like this:

12x + 3y –8

-4x - y + 8

——————

8x + 2y

write an equation in slope-intercept form for the line that passes through (-3,1) and is parallel to the line described by y=4x+3

Answers

Answer:

y = 4x + 13

Step-by-step explanation:

m = 4 at point (-3,1)

y = 4x + b

1 = 4(-3) + b

1 = - 12 + b

b= 13

y = 4x + 13

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