Use the substitution method to solve the system of equations. Choose the
correct ordered pair.
3x - y = 7
2x - 2y = 2
A. (2,-2)
B. (2,2)
C. (3,-1)
D. (3,2)

Answers

Answer 1
3x - y = 7
-> y = 3x - 7
2x - 2y = 2
Use the substitution method
2x - 2 ( 3x - 7 )=2
2x - 6x + 14 =2
-4x = 2-14
X = -12/-4
X = 3
Sub x = 3 into the eq y= 3x - 7
Y= 3*3-7
Y = 2 so the answer is D

Related Questions

HELP ME PLEASE! Determine the slope of the line represented by the graph below.
m= 2
m= -2
m = 1/2
m= -1/2

Answers

the slope of the line is m = -1/2

A square on a coordinate plane is translated 9 units down and 1 unit to the right. Which function rule describes the translation?
A. T1-9x, Y)
B. T-1-9x. y)
C. T-o, 10, y)
D. T-9,-1X, Y)​

Answers

Answer:

the answers should be T1, -9(x, y)

A. T1-9(x, Y)

Good luck!

Solve 3(x-4)= -5 for x.

Answers

Answer:

x= 7/3 (fraction)

Step-by-step explanation:

If you plug it in it will work

The 10 students on the swim team want to raise $185.50 to buy uniforms. They have already raised $60.00. If each student raises the same amount, how much more money must each student raise?

Answers

Answer:

785.50

Step-by-step explanation:

10x60=600+185.50+785.50 hope i helped

Answer:It will be $125.50

Step-by-step explanation:Ok like you side each of the 10 students have $60 but they trying to get to 185,50 so you have to dived 60 to 185.50 cents.

Which is the type of energy available in food1? gravitational kinetic​

Answers

Answer:

chemical energy

Food energy is chemical energy that animals (including humans) obtain from food through the process of cellular respiration (also called eating).

Please answer! Will give brainiest! Which of the following side lengths could form a right triangle? Circle all that apply
A. 3, 7, 10 B. 4, 9, 10 C. 5, 12, 13 D. 6, 8, 10

Answers

Answer:

C. 5, 12 and 13

D. 6, 8 and 10

Step-by-step explanation:

To see if three side lengths would give you a right triangle, you have to use the Pythagoras Theorem which is a² + b² = c², where c is the hypotenuse (longest side) and a and b are adjacent to the right angle.

A. 3² + 7² ≠ 10²

9 + 49 ≠ 100

58 ≠ 100

B. 4² + 9² ≠ 10²

16 + 81 ≠ 100

97 ≠ 100

C. 5² + 12² = 13²

25 + 144 = 169

169 = 169

D. 6² + 8² = 10²

36 + 64 = 100

100 = 100

Which inequality means that 4 is to the right of the other number on a number line?
09>-4
ООО
-4<-2
0-4 >-9
O 2>-4

Answers

Answer:Write a hypothesis about the pH level of common household solutions based on what you know about their physical and chemical properties. Use the format of "if . . . then . . . because . . .” and be sure to answer the lesson question "How is pH used to determine if a solution is acidic or basic?”

Step-by-step explanation:

How do you change -3 in x^-3 to be positive?

Answers

Answer:

x^-3=1/x^3

This is how we do it.

Answer:

Take the reciprocal. 1/x^3

Step-by-step explanation:

When you take the reciprocal of a number or a variable, the exponent changes sign.

Please help me please

Answers

Answer:c because the angle to the left and right are equal

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

Help me !!!!!!!!!!!!!!!!!

Answers

Answer:

2 3/4 and 11/4

Step-by-step explanation:

A rectangle is drawn on a coordinate grid. The equation for one side of the rectangle is 2x – 5y = 9. Which could be the equation of another side of the rectangle?
y = 5x + 9
y = 2x – 9
y = -2/5x + 9
y = 2/5x - 9

Answers

Answer:

D

Step-by-step explanation:

it just is

An angle measures 38° less than its complement. Find the measures of the two angles.​

Answers

Let c represent the complement.

angle = c - 38
Complement = c

equation :

c - 38 + c = 180
2c - 38 = 180
2c = 218
c = 109

First angle is 71 degrees and the complement is 109.

The measures of the angles are: 64°  and 26°.

Recall: Two angles are complement of each other if they add up to the sum of 90° .

Thus,

Let [tex]x[/tex] represent the first angle

The second angle = [tex](x-38)^{o}[/tex]

Therefore:

[tex]x + (x - 38) = 90[/tex]

Solve for x

[tex]x + x - 38 = 90\\2x - 38 = 90\\2x - 38 + 38 = 90 + 38\\2x = 128\\x = 64[/tex]

The first angle, x, is 64°

The second angle = [tex]x - 38[/tex]

Plug in the value of x

[tex]= 64 - 38\\= 26[/tex]

Therefore, the measures of the two angles are 64°  and 26°

Learn more about complementary angles here:

https://brainly.com/question/13389583

BRAINIEST IF ANSWERED !!If mZBNO = 85, then what is m

Answers

M is mantions you feel me lol

Estimate the product of 2774 x 28

Answers

77,672 would be the product.

You are single and claim 1 allowance. You presently earn $520.00
per week. Starting next week you will receive a 5% increase in
pay and will earn $546.00. How much more will you have
withheld from your weekly pay for federal income tax?

Answers

I’m 644.001 dollars if not I’m sorry

Answer:1.99

Step-by-step explanation:

520 × 7.65= 39.78

546 × 7.65 = 41.77

41.77 - 39.78 =1.99

what is the formula of perpendicular line​

Answers

Two lines are perpendicular if . Another way of saying this is the slopes of the two lines must be negative reciprocals of each other

what is the image (-2,-5) after a dilation by a scale factor of 2 centered at the origin ​

Answers

Answer:

Step-by-step explanation: (-4,-10)

Helppp!!! This has to be done by 8!!! And it’s 7:45!!

Answers

Answer:

The constant of porportionality is k = 12.5; the equation that describes the relationship is y = 12.5x.

Step-by-step explanation:

When you divide the miles by the hours, it's always 12.5, meaning that k must be 12.5.

If x is the hours and k is 12.5, the equation that describes the relationship is y = 12.5x.

At summer camp the ratio of boys to girls was 5 to 4. If there were 40 boys, how many girls were there?

Answers

if there are 40 boys, there are 32 girls.

formula:

5x8= 40 ( the boys )
4x8 = 32 ( the girls )

Answer:

32 girls

Step-by-step explanation: 5*8=40 and 4*8=32

.
How is 700,000,000 expressed in standard scientific notation?
7.0 × 10^-8

7.0 × 10^+8
IS IT POSITIVE 8 OR NEGATIVE 8?

Answers

Positive.

Hope this helps.

The zoo charges an entry fee of $12.50 plus $5.00 per animal show ticket. Let t represent the number of animal show tickets purchased and c represent the total cost of the entry fee and animal show tickets. Write an equation to calculate the total cost for a person who pays the entry fee and purchases t tickets.

Answers

Answer:

c=5t+12.50, it cost 17.50 for one person

Step-by-step explanation:

5$ per person

and 12.50 added

c= total cost

Please help me I don't know how to do this look at the attachment for the question

Answers

the answer is 95.

Step-by-step explanation:

180-85=95

Answer:

m<1= 95

Step-by-step explanation:

180-85=95

Find (x+y)^2 when (x-y)=5 and xy=24
Formula:
(a+b)^2 -(a-b)^2 =4ab
(7)

Answers

Answer:

(x + y)² = 121

Step-by-step explanation:

Using the identity

(x + y)² - (x - y)² = 4xy , then

(x + y)² - 5² = 4(24) , that is

(x + y)² - 25 = 96 ( add 25 to both sides )

(x + y)² = 121

The answer is 121 there u go

Suppose that gas costs Big Ray $2.00/gallon and that he pays an attendant $100/day. Let C(x)
represent the total daily cost as a function of the price of the gas. Find the formula for C(x)

Answers

Answer:

C(x) = 2x + 100

Step-by-step explanation:

Here, we want to find the formula for C(x)

Here, x will be the number of gallons of gas

so per day, if x gallons of gas were consumed, the daily cost here will be x * 2 = $2x

Adding the cost for the attendant, we have 2x + 100

So the formula for C(x) will be;

C(x) = 2x + 100

PLS HELP

Which function represents the transformation that moves figures to the right 3 units and down 7 units?

Answers

Answer:

A

Step-by-step explanation:

Adding positively to an x moves it right, and negative moves left. Adding to a y moves it up, and subtracting moves it down.

The transformation that moves figures to the right 3 units and down 7 units is A. (x, y) ⇒ (x + 3, y - 7)

Transformation is the movement of a point from its initial location to a new location. Types of transformation are rotation, reflection, translation and dilation.

Translation is the movement of a point up, down, right or left in the coordinate plane. If a point A(x, y) is moved a units right and b units down, the new location would be at A(x + a, y - b).

A function that moves figures to the right 3 units and down 7 units can be represented by:

(x, y) ⇒ (x + 3, y - 7)

Find out more at: https://brainly.com/question/11707700

What is the slope of the line through (-7, -8) and (0, 4)? a 7/12 b 12/7 c -7/12 d -12/7

Answers

Answer

B: 12/7

Step-by-step explanation:

Answer:

The answer is B

Step-by-step explanation:

I hope this helps

-3 r + 3(r-2) = -2(r+6)

Answers

Answer:

r= -3

Step-by-step explanation:

-3 r + 3(r-2) = -2(r+6)

-3r+3r-6= -2r-12

-6= -2r-12

2r=6-12

2r= -6

r= -3

'Increased' is a cue word for​

Answers

Answer:

add

Step-by-step explanation:

increased is another word for add

Answer:

More, added, addition......

Just the words that are making the number bigger.

Can anybody help me please with question 2 please and thank you .I would really appreciate it so much.

Answers

Please be more specific

How far would the cheetah have traveled in the next 8 minutes? Show how you arrived at
your answer.

Answers

Answer:99 feet

Step-by-step explanation:

Other Questions
What part of a scientific research report is most likely to explain the report's key findings?the abstractthe methods sectionthe list of sources Emilio values honest and straightforward communication, so he appreciated his doctors____ responses to his questions. 1. Direct2.abrupt3.prompt4.curt Which action is a healthy way to express anger? writing a letterpunching a wallyelling at a family memberthreatening others verbally No 2 please.Quick. HELP ASAP PLSS ITS NOT DWhich of the following statements would best express cultural relativism?A.I dont understand how they could deal with that gross food.B.This is making my stomach upset just by watching.C.I wonder why they decided to make food out of worm paste.D.Eating worms for a religious ritual is so uncivilized. what should i be for halloween? pls help me answer this question if correct I'll make brainylist!!!!!! ABC and CDE similar right triangles. The coordinates of all the vertices are integers.A: The relationship between the slope of AC and the slope of CE cannot be determined, because the triangles are congruent. B:The slope of AC is equal to the slope of CE . This this because ratio of the change in y-values of the endpoints to the change in x-values of the endpoints is the same for AC as for CE C:The slope of AC is greater than the slope of CE . This is because the ratio of the change in y-values of the endpoints to the change in x-values of the endpoints is greater for AC than for CE .D:The slope of AC is less than the slope of CE . This is because the ratio of the change in y-values of the endpoints to the change in x-values of the endpoints is less for AC than for CE . Read the introductory paragraph and answer the question in complete sentences.The community comes alive at night! Schools that once were dark in the evening are now alive with lights and people. The people are adults and the lights are on and the school buildings are open because adults are enrolled in community education classes.What do you believe the subject will be? -24+to the power of 3 Which is a bad practice when dealing with hot or flammable items?A. Keeping loose papers near open flamesB. Tying back loose hairC. Wearing insulated gloves to handle hot objectsD. Knowing the locations of emergency exits marta y jaunita son de francia son There are twice as many flute players as there are trumpet players in the band. if there are n flute players, write an algebraic expression to find out how many trumpet players there are two years ago randi earned $18,400. last year she earned $19,700. suppose she earns $21,600 this year. how much would randi have to earn next year so that her four year average is $21,000 Henry is playing a new game app where he needs to navigate through a maze without touching the walls. each player stars with 1,000 points, and 5 points are deducted each time a wall is touched. What type of relationship most appropriately models this situation?A. Exponential Decay B. Linear Decrease C. Exponential Growth D. Linear Decrease (x+14+49)m=what is the answer? Describe the White queen from Alice In Wonderland. If a molecule of CH4 diffuses a distance of 0.530 m from a point source, calculate the distance (meters) that a molecule of N2 would diffuse under the same conditions for the same period of time (1 second). Can someone give me some ideas of hooks that could be used to write about this picture? Elijah needed to dig a row along a fence that was 5 feet long. He was able to dig all but 42 inches of the row before dark.How many inches was he able to dig before dark?