Mathematics High School

Solve the system of equations
help me show the steps

5x -2y = 88




3x+4y=58

Answers

Answer 1

Answer:

x=18

Step-by-step explanation:

add 2y to both sides 5x=2y+88

subtract 88 from both sides 2y=5x-88

substitute 2y in the second equation for 5x-88

3x+10x-176=58

add like terms 13x-176=58

add 176 both sides

13x=234

x=18

Answer 2

Answer:

( 18, -6.5 )

Step-by-step explanation:

First choose which method you plan on using: Substitution or Elimation. I chose elimination based off preference.  

How to solve using Elimination:

5x -2y = 88  (multiply every number in this equation by two)

3x+4y=58

10x -4y = 176

3x+4y=58      (combine these two equations)

13x = 234  (isolate x by dividing by 13 on both sides)

x = 18         (this is your value for x)

3(18) +4y=58   (plug in for x)

54+4y=28        (solve)

4y = -26            (subtract 54 from both sides)

y = -6.5             (this is y)

write answer in (x, y) format

( 18, -6.5 )

Related Questions

The expression (3x^7)^4 is equivalent to cx^n.What is the value of c?

Answers

Answer: It’s 81

Step-by-step explanation:

I think it’s 81 because u use the distributive property (xy)^a=x^a y^a

and in the situation you change it into 3^4(x^7)^4 and u simplify 3^4 and get 81 and then just multiply 7 and 4 and your answer is 81x^28. 81 is c in the equation

We want to find an equivalent expression to  (3x^7)^4 of the form cx^n, and we want to find the value of c.

The equivalent expression is:

[tex]81*x^{28}[/tex]

So the value of c is:

c = 81.

First, we need to remember two properties of exponents.

The exponents are distributive under multiplications.

And we know that:

[tex](a^n)^m = a^{n*m}[/tex]

Using these two properties, we can rewrite:

[tex](3x^7)^4 = (3^4)*(x^{7*4}) = 81*x^{28}[/tex]

So the equivalent expression is:

[tex]81*x^{28}[/tex]

Then we have c = 81.

If you want to learn more, you can read:

https://brainly.com/question/21213498

(VARIABLES) Please solve these ASAP! I will give brainliest! Thank you

Answers

Answer:

17) (4 x 3) - 2 = 12 - 2 = 10

18) (3 x 2) + (2 x 4) - 3 = (6 + 8) - 3 = 14 - 3= 11

Step-by-step explanation:

please help me -4< X/3 < 0

Answers

-12 < x < 0 is the answer

Answer:

−12<x<0

Step-by-step explanation:

x/9 = 4/15 solve the following proportions

Answers

Answer:

x = 2.4

Step-by-step explanation:

x*15 = 9 * 4

15x = 9 * 4

15x = 36

x = 2.4

4. What is the value of the expression that you chose in number 3? *

Answers

Answer:

what is the answer choice

Step-by-step explanation:

You take a bite of a cookie and begin to crush it between your teeth making smaller bits in your mouth.
Physical or Chemical Change?
Facts or Proof?

Answers

physical, you aren't changing the substance, you are just changing the shape of the cookie

what is an equation equivalent to 5x-25

Answers

25-25=0

Assuming that x is five then this would work.

Answer:

x-5

Step-by-step explanation:

divide both sides by 5

5x-25

/5   /5

_____

x -  5

How are geometric sequences similar to arithmetic sequences? How are they different?

Answers

The differences between arithmetic and geometric sequences is that arithmetic sequences follow terms by adding, while geometric sequences follow terms by multiplying. The similarities between arithmetic and geometric sequences is that they both follow a certain term pattern that can't be broken. There you go

Help me I have a Timer Still

Answers

6.51 x 10^9
Blue box: 6.51
Orange box: 9

Plz someone help me on this question

Answers

Answer:

(2,3)

Step-by-step explanation:

Answer:

(2,3)

Step-by-step explanation:

Once again the answer to the equations is where the two lines intersect and they intersect at (2,3)

simplify 6 (n - 4) - 4n

Answers

The answer is 2n-24. Hope this helps!

Find two different polynomial functions that have a zero at 2 of multiplicity 5 and a zero at ­4 of multiplicity 3

Answers

Find two different polynomial functions that have a zero at 2 of multiplicity 5 and a zero at ­4 of multiplicity 3

If you are talking about a -4, here you go (If not tell me):

P(x) = (x-2)^5 (x+4)^3

g(x) = (3x-6)^5 (x+4)^3

Hope this helps!

Factor: x^2 - 4x - 21

Answers

Answer:

(x-7)(x+3) thats the answer for your question

Plz help, I'll give brainliest


Find the value of x​

Answers

Answer:

14.04

Step-by-step explanation:

[tex]19^{2}[/tex] - [tex]17^{2}[/tex] = 72

[tex]\sqrt{72}[/tex] = 8.48

8.48 + 8.48 = 16.96

31 - 16.96 = 14.04

Explain how to convert percent to fractions and percents and decimals
PLEASE YELP IM ON A TEST!!!

Answers

Percents to a decimal is easier to understand just take the percent so say it is 35% the decimal form would be .35 or 5% .05, and for the percent to a fraction just take the percent such as 30/100 and make sure it is in the simplest form to solve so that would be 3/10.

Geometric proofs 2.0 i need help on this plz

Answers

1. Given
2. Given
3. Def. of Midpoint
4. Segment Addition Postulate
5. Addition Property
6. Can’t see statement

Regular hexagons P and Q are shown.
2 cm
6 cm
Q
P
How do the areas of hexagons Pand compare?
O A The area of Pis 3 times the area of Q.
OB. The area of Pis 9 times the area of 0.
OC. The area of Pis 12 times the area of Q.
OD. The area of Pis 18 times the area of Q.

Answers

9514 1404 393

Answer:

  B.  The area of P is 9 times the area of Q.

Step-by-step explanation:

The areas of similar figures are related by the square of the scale factor of their linear dimensions. The ratio of side lengths is ...

  side of P : side of Q = 6 : 2 = 3 : 1

So, the ratio of areas is ...

  area of P : area of Q = 3² : 1² = 9 : 1

The area of P is 9 times that of Q.

Camille's birthday party will cost $32 if she invites 16 guests. How many guests can there be, at most, if Camille can afford to spend a total of $48 on her birthday party? Assume the relationship is directly proportional.

Answers

Answer: 24

Step-by-step explanation:

32/16=2 so it cost 2 per guest.

48/2= 24 guests

Can y’all help with 2 & 3?

Answers

1. Is 5, 2 is 50 cents, and his total is 20. Hope this helps!

someone help on this please

Answers

Answer:

C, D, F

Step-by-step explanation:

Simply put your equations into a free graphing calculator such as

DESMOS

and it's quite simple!

hope this helps!!

Does the system have one solution, no solution, or infinite
solutions?
8x - 4y = 12
y = 2x - 3

Answers

Answer: infinite solutions

Step-by-step explanation:

If you check on desmos and plugged in both equations on there, you would see that the lines are placed exactly the same/have the same points, making it infinite solutions :)

I need help! Quickly, please!

The water level during a long drought fell 7 1/2 feet one year and fell another 5 1/4 feet the next year. What was the total change in the water level for those two years?
A. -12 3/4 ft.
B. 2 1/4 ft.
C. 12 3/4 ft.
D. -2 1/4 ft.

Answers

Answer:

A

Step-by-step explanation:

7 1/2 + 5 1/4 = 12 3/4. But, the problem says the water level fell. So, it's -12 3/4 ft.

Answer:

A. -12 3/4 ft. Is the answer!!

Step-by-step explanation:

Please help due today

Answers

I would say likely, because 7/8 is almost 8/8 which would mean it would be happening.

Which side lengths form a right triangle?

Answers

Answer:

b

Step-by-step explanation:

6^2+8^2=100

sqrt of 100 = 10 so it would form a right triangle

Follow the order of operations to simplify 20 - 5 + 3​

Answers

12 is the correct answer

Write an equation for the line that passes through (-8.5, 11) and (5, -2.5).

Answers

9514 1404 393

Answer:

  y = -x + 5/2

Step-by-step explanation:

The 2-point form of the equation of a line can be useful.

  y = (y2 -y1)/(x2 -x1)/(x -x1) +y1

  y = (-2.5 -11)/(5 -(-8.5))/(x -(-8.5)) + 11

  y = -13.5/13.5(x +8.5) +11 . . . . . . simplify a bit

  y = -x +2.5 . . . . . write in slope-intercept form

Which expression is equivalent to 2(y + 11)

Answers

it can be: 2y + 22 have a great day !!
2y + 22 just multiple 2 by what is in the parentheses to find the answer.

is the answer a, b, c, or d ?

Answers

Answer:

C

Step-by-step explanation:

Do i have to explain?

Using m∠ABC, find m∠CAB. Show your work.

you have to open geo cal

Answers

You forgot to put the picture I’m sorry

Answer:

The answer is 60

Step-by-step explanation:

m∠CAB = 180° − 90° − 30° = 60°

WILL GIVE BRAINLIEST!
Translate into a variable expression.
8 divided by the difference between x and 6

Answers

Answer:

[tex]\frac{8}{x-6}[/tex]

Step-by-step explanation:

8 ÷ x-6

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