Find the solution to the following system of equations:
[2x-y=3
[x-y= -2
A.(-1,-5)
B.(1,3)
C.(4,5)
D.(5,7)​

Answers

Answer 1

Answer:

the answer is D.(5,7)

Step-by-step explanation:

Solve for the first variable in one of the equations, then substitute the result into the other equation.

hope this help. :)


Related Questions

what is 4.9x10^-3 in standard form

Answers

Answer:

0.0049

Step-by-step explanation:

Answer: 0.0049

There u go luv, have a nice day :)

What is the simple interest earned in 4 months on a $300
savings account at an annual rate of 5%?

Answers

Answer:

$60

Step-by-step explanation:

Multiply $300 (the total amount of money) by 0.05 (the annual rate)

300 x 0.05 = 15

Then, Multiply the number of months, to 15

15 x 4 = 60

$60 of simple interest earned in 4 months

Which answer choice shows 12.444 rounded to the nearest half?
A. 11
B. 11.5
C. 12
D. 12.5

Answers

Answer:

C. 12

Step-by-step explanation:

Remember 0 to 4 turn it back

5 or above give it a shove.

Since 12.444 is around 0 to 4.

We can round that to 12.

Answer:

C.12

Step-by-step explanation:

Rounding a number involves replacing the number with an approximation of the number that results in a shorter, simpler, or more explicit representation of said number based on specific rounding definitions. For example, if rounding the number 2.7 to the nearest integer, 2.7 would be rounded to 3.



Given that 4x−5y=39
Find y when x=3
Give your answer as an improper fraction in its simplest form.


Answers

Answer:

- [tex]\frac{27}{25\\}[/tex]

Step-by-step explanation:

4x−5y=39

for x=3

12 - 5y = 39

-5y = 39 -12

-5y = [tex]\frac{27}{5\\}[/tex]

-y = [tex]\frac{27}{25\\}[/tex]

y = - [tex]\frac{27}{25\\}[/tex] = -1 [tex]\frac{2}{25\\}\\[/tex]

-27/5 or -5 2/5

Step-by-step explanation:

4x-5y=39 while x=3

4(3)-5y=39 add x into bracket

12-5y=39 result of 4*3

12-5y-12=12-39 substrate non variable number to each side

5y = -27 the result from upper substraction

y= -27/5 the result mixed fraction form -5 2/5

Question 121 pts
Daniel had $30 to spend at the fair. If the admission to the fair is $8 and the rides cost $1.25 each, what is the greatest number of rides Daniel can go on?

Answers

Answer:

 17 rides

Step-by-step explanation:

30-8=22

22 divided by 1.25=17.6 and then you cant go on without 1.25 so 17

hello! um what is the equivalent to 3/7?

Answers

Answer:

9 goes in the blank

Step-by-step explanation:

Since 21 divided by 7 is 3 then you would have to multiply 3 to the numerator to get the equivalent. Hope this helped :)

Answer:

9/21

Step-by-step explanation:

multiply the numerator and denominator by 3 and you will get 9/21

What is the y-intercept. Describe how you know in both the table and the graph.

Answers

Answer:

(4,0)

Step-by-step explanation:

the y-intercept is 4 because when the x value is 0 the y value is 4 on both the graph and table

find the distance and midpoint of a segment with the following endpoints: (5,-1) and (-9,-1)

Answers

Answer:

[tex]d = 14[/tex]

[tex](-2,-1)[/tex]

General Formulas and Concepts:

Order of Operations: BPEMDASDistance Formula: [tex]d = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]Midpoint Formula: [tex](\frac{x_1+x_2}{2},\frac{y_1+y_2}{2})[/tex]

Step-by-step explanation:

Step 1: Define

(5, -1)

(-9, -1)

Step 2: Find distance d

Substitute:                    [tex]d = \sqrt{(-9-5)^2+(-1-(-1))^2}[/tex]Simplify:                        [tex]d = \sqrt{(-9-5)^2+(-1+1)^2}[/tex]Subtract/Add:               [tex]d = \sqrt{(-14)^2+(0)^2}[/tex]Evaluate:                       [tex]d = \sqrt{196}[/tex]Evaluate:                       [tex]d = \14[/tex]

Step 3: Find Midpoint

Substitute:                    [tex](\frac{5-9}{2},\frac{-1-1}{2})[/tex]Subtract:                       [tex](\frac{-4}{2},\frac{-2}{2})[/tex]Divide:                          [tex](-2,-1)[/tex]

Select the correct locations on the graph. Select the lines that represent functions.

Answers

Answer:

bruh there isnt a graph or anything we cant answer it

Step-by-step explanation:

Answer:

where is it

Step-by-step explanation:

3
Lee has -£13 in his bank account. Every week he gets paid £45, and
spends £60. How much will Lee have in his bank account after 3 weeks?

Answers

Answer:

Lee has -£13 in his bank account.

Every week he gets paid £45, and  spends £60.

IN 3 WEEKS

He gets paid --> £45 · 3 = £135

He spends money --> £60 · 3 = £180

£135 - £180 = -£45

He had -£13 initially

He now has --> -£13 - £45 = -£58

HELP ME ANSWER THESE 2 QUESTIONS MY PARENTS ARE ABOUT TO PUNISH ME IF I DONT DO IT (SHOW WORK OR ANSWER WILL NOT COUNT)

Answers

Answer:

what are the questions hurry and tell me

Simplify the expression

Answers

Answer:

             f(x) = x - 6             g(x) = x - 5

Step-by-step explanation:

[tex]\dfrac{x^2-8x+12}{x^2-7x+10}\\\\x^2-7x+10\ne0\ \iff\ x=\frac{7\pm\sqrt{49-40}}{2}\ne0\ \iff\ x\ne5\ \wedge\ x\ne2\\\\\\\dfrac{x^2-8x+12}{x^2-7x+10}=\dfrac{x^2-2x-6x+12}{x^2-2x-5x+10}=\dfrac{x(x-2)-6(x-2)}{x(x-2)-5(x-2)}=\\\\\\ =\dfrac{(x-2)(x-6)}{(x-2)(x-5)}=\dfrac{x-6}{x-5}\\\\\\f(x)=x-6\\\\g(x)=x-5[/tex]

Which ratio is less than 15 Over 24
A. 1/2
B. 7/8
C. 19/24
D. 6/8

Answers

Answer:

A

Step-by-step explanation:

The water level of a lake is at 35ft. It is rising at a rate of 3 inches per day. How many days will it take the lake to reach 40 ft?

Answers

20 days.

First of all, how many inches are in a foot?
1 inch = 1/12 foot
3/12 —> 1/4
5 feet until 40 is reached, but only .25 per day...
5 * 4 = 20

There are screws, nuts and bolts in a tool box. The ratio of the number of
Screws to the number of nuts to the number of boits is 2:3:7. The
difference between the number of nuts and the number of bolts is 112.
Find the number of each item​

Answers

Answer:

Step-by-step explanation:

56:84:196 would be the answer

There are 5,000 books in the​ town's library. Of​ these, 4,300 are fiction. To find the percent of the books that are​ fiction, first set up the percent equation. Then find the percent.
A. 4,300 = m / 5,000
B. 4,300 = m x 5,000
C. 5,000 = m / 4,300
D. 5,000 = m x 4,300

Answers

Answer:

B

Step-by-step explanation:

The percent of the books that are​ fiction is 86% and the percent equation is 4300=m×5000. Therefore, option B is the correct answer.

Given that, there are 5,000 books in the​ town's library.

What is percentage?

Percentage is defined as a given part or amount in every hundred. It is a fraction with 100 as the denominator and is represented by the symbol "%".

Let the percent of the books that are​ fiction be m

So, m= 4300/5000

4300=m×5000

Percentage =4300/5000 ×100

= 86%

The percent of the books that are​ fiction is 86% and the percent equation is 4300=m×5000. Therefore, option B is the correct answer.

To learn more about the percentage visit:

brainly.com/question/24159063.

#SPJ2

If the dollar store is 5 miles away from my house, and my dad walks at 5 Mph, why has it taken my dad 12 years to come back?

Answers

Hes friends with my dad

Three Variables LINEAR EQUATION​

Answers

Answer:

x= 1, y= -2, z= 5

Step-by-step explanation:

Please see the attached picture for the full solution.

Tristan charges a flat rate of $16 for
each small lawn that he mows. He
decided to increase his rate to $20.
What is the new rate as a percent of
the old rate? Show your thinking.​

Answers

Answer:

125%

Step-by-step explanation: because 25% of $16 is $4 and it's a $4 increase of the already 100% making 125%

A group of people planned to go to the amusement
park. Adult tickets are $45.00 and child tickets are $20.
There are two adults in the group. If the budget for the
trip is $600, what is the greatest number of children
that can attend.

Answers

Answer:the greatest amount of children that can go is 30

Step-by-step explanation:

$20 x 30= $600

A question on a test asks students to find the speed at which a car travels. The graph shows a proportional relationship between the distance traveled in miles and time in hours. Billy incorrectly says that the speed of the car is 1/60 mile per hour. What is the speed of the car? What error might Billy have made?​

Answers

Answer:

Step-by-step explanation:

Since, speed of a car = [tex]\frac{\text{Distance traveled}}{\text{Time taken}}[/tex]

From  the graph attached,

A point (1, 60) lies on the line shown in graph.

At this point speed of the car = [tex]\frac{\triangle y}{\triangle x}[/tex]

                                                [tex]=\frac{60-0}{1-0}[/tex]

                                                = 60 miles per hour

But Billy says the speed of the car is [tex]\frac{1}{60}[/tex] miles per hour.

So the error in the Billy's answer is that he has used the wrong formula to calculate the speed.

(As per Billy, speed = [tex]\frac{\text{Time taken}}{\text{Distance covered}}[/tex])

Plz help me with this question if you can explain plz do also thank you!!

Answers

Answer:

The answer is b because h = hours and 45 is the mph

Step-by-step explanation:

1
2 3
4
5
6
7
8
7
During a basketball practice, Mai attempted 40 free throws and was successful on
25% of them.
How many successful free throws did she make?
The answer

Answers

10 is the correct answer

Answer:

10

Step-by-step explanation:

Total attempts = 40Successful attempts = 25%

Number of successful free throws:

25% of 40 =0.25*40 = 10

PLS HELP ASAP

WILL MARK BRAINLIEST

Answers

Answer:

the answer would be clld i am pretty sure yeah hopefully it is right and yeah

Step-by-step explanation:

Will mark BRAINLIEST!!
3=1/2(x+4)

Answers

Answer: x = 2

3 = (1/2) (x+4)
3 = (1/2) (2+4)
3 = (1/2) (6)
3 = 3

3=1/2(x+4)

x+4= 3×2

x+4= 6

x=6-4

x=2

is y= 12 x a proportinal relationship

Answers

Answer: yes

Step-by-step explanation:

Yes y=12x is a proportional relationship

2.1(0.2x−1.4)=1.3(0.4x−3.5)

Answers

Answer:

x=9.84375

Step-by-step explanation:

...

Answer:

16.1=x

Step-by-step explanation:

2.1(0.2x-1.4)=1.3(0.4x-3.5)  Distribute          

0.42x-2.94=0.52x-4.55  Combine like terms

+4.55                     +4.55  

0.42x+1.61=0.52x

-0.42x         -0.42x  

1.61=0.1x

0.1     0.1              

16.1=x

A ship leaves port on a bearing of 20.2 degrees East of North and travels 6.5 miles. The ship then turns due East and travels 3.8 miles.
How far is the ship from the port, and what is its bearing?
Distance: 8.6 miles; Bearing: 20.2 degrees West of North.
Distance: 8.6 miles; Bearing: 20.2 degrees East of North.
Distance: 8.6 miles; Bearing: 44.7 degrees East of North.
Distance: 8.6 miles; Bearing: 44.7 degrees West of North.

Answers

Answer:

C

Step-by-step explanation:

Distance: 8.6 miles; Bearing: 44.7 degrees East of North.

The distance of the ship which leaves port on a bearing of 20.2 degrees East of North is 8.6 miles and its bearing is 44.7 degrees East of North.

What is cosine law?

When the three sides of a triangle is known, then to find any angle, the law of cosine is used.

It can be given as,

[tex]c^2=a^2+b^2-2ab\cos C\\a^2=c^2+b^2-2ab\cos A\\b^2=a^2+c^2-2ab\cos B[/tex]

Here, a,b and c are the sides of the triangle and A,B and C are the angles of the triangle.

A ship leaves port on a bearing of 20.2 degrees East of North and travels 6.5 miles. The ship then turns due East and travels 3.8 miles.

This problem is shown in the image. The distance of ship from initial point is,

[tex]c=\sqrt{6.5^2+3.8^2-{2\times6.5\times3.8\times\cos (110.2)}}\\c\approx8.6\rm\; miles[/tex]

The measure of the angle x is,

[tex]\angle x=\cos^{-1}\dfrac{8.6^2+3.8^2-6.5^2}{2\times8.6\times3.8}\\\angle x=44.7^o[/tex]

Hence, the distance of the ship which leaves port on a bearing of 20.2 degrees East of North is 8.6 miles and its bearing is 44.7 degrees East of North.

Learn more about the law of cosine here;

https://brainly.com/question/4372174

Determine if the statement is True or False:

The length of the shorter segment cut by the altitude from the obtuse angle to the longer base of an isosceles trapezoid is equal to the average of the bases.

Answers

The statement is false.

AWARDING MORE POINTS question in pic

Answers

Answer:

sad

Step-by-step explanation:

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