2x-5y=9 y-3x=-7 solve by substitution

Answers

Answer 1

x

=

2

and

y

=

1

Explanation:

y

=

3

x

7

   and    

2

x

5

y

=

9

Substitute for

y

2

x

5

(

3

x

7

)

=

9

Simplify

2

x

15

x

+

35

=

9

Keep going and get

13

x

=

26

So

x

=

2

Now find

y

y

=

3

x

7

 

3

(

2

)

7

y

=

1


Related Questions

Need some help if u don’t mind :)

A)94
C)82
C)76

Answers

Answer:

82

Step By Step Explanation:

I would have choose 86 but there is no 86 since 82 is closer I choose it.

A full angle equals 180 so 180-94=86.

Hopes This Helps

Sam runs 6 miles in 55 minutes. At the same rate, how many miles would he run in 44 minutes?

Answers

Answer:

4.8

Step-by-step explanation:

6/55= ~0.109

0.109*44=4.8

Solve the following quadratic equation for all values of x in simplest form.
2(5x + 9)2 + 10 = 28

Answers

Step-by-step explanation:

x = 2/5 or x = 0 Hope that will help


Which graph represents a function?

Answers

Answer: B

Step-by-step explanation:

HELPPPPP!!!!!!!!!!!!!!!!!!!!!!!

Answers

[tex]\left(-\dfrac 16 \right)^2 +\dfrac 58 \left(-\dfrac 19} \right)\\\\\\=\dfrac 1{36} -\dfrac{5}{72}\\\\\\=\dfrac 2{72} - \dfrac{5}{72}\\\\\\=-\dfrac 3{72}\\\\\\=-\dfrac 1{24}[/tex]

Answer:

Step-by-step explanation:

(-1/6)^2 + 5/8(-1/9)= -0.0416

Thus the answer is -1/24

Solve the inequality.
D
— < -4
-5

Answers

d>20 should be the answer good luck

In the circle represented by the equation (x-4)2+(y-3)2=25, the diameter is

Answers

i’m pretty positive the answer is (-3,4)

write 9^3 x 27^2 as a single power of 3

Answers

Answer:

3^12

Step-by-step explanation:

9³=(3²)³=3^6

27²=(3³)²=3^6

So together, it is 3^12

Answer:

3^12

Step-by-step explanation:

9^3 x 27^2

Rewrite 9 as 3^2 and 27 as 3^3

3^2^3  * 3^3^2

We know that a^b^c = a^(b*c)

3^(2*3)  * 3^(3*2)

3^6   * 3^6

We know that a^b  * a^c = a^(b+c)

3^(6+6)

3^12

simply 5(x-y)+2(x+y)​

Answers

Answer:

5x-5y+2x+2y

7x-3y

That's it

Please help ASAP, any links will be reported!
Write an inequality that represents the graph below:

Answers

Answer:

x< 0

Step-by-step explanation:

[] An open circle means we will be using < or > and not ≤ or ≥ because the number is not included in the inequality

[] The direction of the inequality sign will go in the direction of the graph, so we will be using < as our number is less than the value given

[] Our final answer, assuming we can use x for this graph, is x < 0

Have a nice day!

     I hope this is what you are looking for, but if not - comment! I will edit and update my answer accordingly. (ノ^∇^)

- Heather

1/2.5+1/5.8+1/8.11+...+1/97.100

Answers

Answer:

that's is the correct answer

Step-by-step explanation:

hope it helps

y varies directly as x . when x=3 , then y=12 . find y when x=20.

Answers

Answer:

Congress. would equal 80 due to x being worth 1/4 of y's total.

What is the area of a room that is 3 3/4 yards long by 3 1/3 yards wide?

Answers

Answer:

Depends on what your question asks for (in mixed or improper form) your answer would be: 150/12 yards or 12 1/2 yards

brainliest please?<3

Step-by-step explanation:

To find the area, first convert the mixed numbers to improper form:  

3 3/4 = 15/4 & 3 1/3 = 10/3

Now multiply them together:  

15/4 x 10/3  

= 150/12

Answer: 12.5

Step-by-step explanation:

3 3/4 in improper form is 15/4. 3 1/3 in improper form is 10/3.

15   10       150

==x == =  ====             150 divided by 12 is 12.5

4     3         12

f(x) = -x^3+8x^2-15x
Domain:
Range: R
Rel. Maximum: X=3
Rel. Minimum(s): X2
End Behavior:
As x, f(x)
As x, f(x)
Incr. Intervals:
Zeros
Decr. Intervals

Answers

That's all I got hope it helps

can someone help? No explanation needed :')

Answers

36/100

Please mark me as brainliest

Which is factorial using integers?
a) y+25
b) y^2-25
c) y^2+25
d) y-10
e) y^2+10

Answers

Answer:

i feel like its A or D i could be wrong but i believe its one of the two

Translate the sentence into an equation
Five less than the product of 3 and a number equals 7
Use the variable b for the unknown number

Answers

Answer:

5-3x=7

Step-by-step explanation:

in what step did audrey make her mistake in ​

Answers

Answer:

step A

Step-by-step explanation:

she should have added x to both sides.

Answer:

-x+6=5x+30

6=6x+30

6x=-24

x=4

if you want to get rid of the -x you have to add x not take away x

Hope This Helps!!!

SOLVE HYPOTENUSE LEG-HL
-GEOMETRY

Answers

[tex]\huge \rm༆ Answer ༄[/tex]

The required information needed to prove the two triangles congruent by HL congruency criteria is ~

[tex] \sf {VW} \cong BA[/tex]

In the sequence
1,2,2,4,8,32,256,...
each term (starting from the third term) is the product of the two terms before it. For example, the seventh term is 256, which is the product of the fifth term (8) and the sixth term (32).

This sequence can be continued forever, though the numbers very quickly grow enormous! (For example, the 14th term is close to some estimates of the number of particles in the observable universe.)

What is the last digit of the 35th term of the sequence?

Answers

Answer: 8

Step-by-step explanation:

Sequence: 1,2,2,4,8,32,256

 

After the first digit, the repeated pattern for the last digit is  2,2,4,8,2,6

 

So, the 35 term's final digit will be 8

Multiply. Enter your answer as a simplified mixed number. -4(3/14) ​

Answers

Answer:

-53 /14

Step-by-step explanation:

Use the graph to find the value of y = sin q for the value of q.
360°
1
90
180
270
1360
e
+
0.2
c.
b. 0
a.
0.4
d. 0.6

Answers

Graphs are used to represent functions, and vice versa

The value of y for q = 360 degrees is 0

The sine equation is given as:

[tex]y = \sin(q)[/tex]

When q= 360 degrees, the sine equation becomes

[tex]y = \sin(360)[/tex]

At q= 360, the graph crosses the x-axis.

i.e. the value of the graph is 0.

So, the sine equation becomes

[tex]y = 0[/tex]

Hence, the value of y for q = 360 degrees is 0

Read more about sine equations at:

https://brainly.com/question/3522842

Factorize 81xsquared+180x+100

Answers

Answer:

81x²+180x+1009x²+180x+10²using (a+b)²=a²+b²+2ab9x²+2(9x)(10)+10²(9x+2)²=(9x+2)(9x+2)


Order the angles in the triangle above from largest to smallest.
Largest
1.B
2.D
3.С
Smallest

Answers

The order is C, B, then D.

All you need is on the photo


Please don't answer randomly if you answer randomly you are gonna lose points

Answers

Answer:

no since the ratios of the corresponding sides are not proportional

y=−2x+7
y=5x−7

x=
y=

Answers

Answer:

x = 2

y = 3

Explanation:

PLS HELP ILL MArk BRAINLIEST!!

Answers

it should be 960 because it’s length x width x height

960 cubic ft

Step-by-step explanation:

I'm just super smart looool

how to factorize 5x^2-20y^2​

Answers

Answer:

Step-by-step explanation:

[tex]5x^2-20y^2\\=5(x^{2} -4y^2)\\=5[x^{2} -(2y)^2]\\=5(x+2y)(x-2y)[/tex]

Answer:

Step-by-step explanation:

At the deli 1 pound of turkey cost seven and 98 Mr. Epson 5 3 pound of turkey how much will the turkey cost

Answers

Answer:

42.29 READ THE EXPLANATION

Step-by-step explanation:

i am guessing you mean the cost for 1 pound is 7.98 and he is getting 5.3 but if different do the steps, all you have to do is mutiple the unit rate (7.98) by how many pounds bought(5.3)

evaluate the expression when p = 4. p^2+5 no links pls ​

Answers

Answer:

21

Step-by-step explanation:

when p is 4

p² + 5 = 4² + 5

16 + 5 = 21

Other Questions
What does mitochondria do What type of information is appropriate for headers and footers? Check all that apply. Earth's layers can be organized based on composition and physical properties. Describe what each of these categorizations mean. 7.9 is what percent of 8? Round to the nearest tenth. The best word to describe the speaker's attitude toward Virgil is. HelppppEvan spent 20 hours doing homework last week. This week he spent 25 hours doing homework. He says that he spent 125% more time doing homework this week. Is he correct? Show your work to justify your decision. PLEASE HELP TEST DUE SOON which graph should be used to show the situation described? The temperature increases by4 every hour Devon has $900 in a savings account. The interest rate is 7% per year and is notcompounded. How much interest will she earn in 2 years?Use the formula i = prt, where i is the interest earned, p is the principal (starting amount),is the interest rate expressed as a decimal, and t is the time in years.= if you multiply a number by 3 an then subtract 5,you will get 40.what is the number? it refers to the organ sysyem that protects the body Which of the following does NOT happen during the light-dependent reactions ofphotosynthesis?ATP is producedOxygen is producedGlucose is producedNADPH is produced To reach the roof , how far away from the building should he place the base of the ladder ? PLEASE HELP When an electron in a hydrogen atom drops from the fifth energy level to the second energy level 4.58 x 10-19 J of energy is released What is the frequency of the photon that is produced? The price of an item has been reduced by 45%. The original price was $60. What is the price of the item now? 40x^-4 y^-6/(over)10x^-5 y^5 please help asap rn thank you Approximately what portion of the box is shaded blue?A.1/3B.1/10C. 1/6 In March 2014, the Obama Administration released a Strategy to Reduce Methane Emissions that takes steps to cut methaneemissions from landfills, coal mining, agriculture, and oil and gas systems. The Administration is making progress in these sectors,and in January 2015 announced a new goal to cut methane emissions from the oil and gas sector by 40-45% from 2012 levels by2025. Long term, all but one is an advantage of these procedures. That iswA)reduction in a potent greenhouse gas.B)reduce the risk of droughts and wildfires.a public health strategy that reduces harmful pollutants.D)saving up to 180 billion cubic feet of natural gas in 2025. ALL of the following are advantages of labour intensive production EXCEPT:Skilled workers take time to trainWorkers are often more motivatedLess expensive machine costHumans can use their initiative to solve problems Which sentence uses a comma to separate two independent clauses?(1 point)