Mathematics High School

Solve the following problems using ELIMINATION.

(pls explain steps also! Giving Brainliest for correct answer and if you “actually” showed work and tried :))

8x - 5y =-18
2x + 5y = 58

Answers

Answer 1

Answer:

(4,10)

Step-by-step explanation:

   8x - 5y = -18

+  2x + 5y = 58

10x = 40

Dive both sides by 10.

x = 4

2x + 5y = 58

2(4) + 5y = 58

8 + 5y = 58

5y = 50

y = 10

Related Questions

Name a pair of adjacent angles

Answers

Answer:

Angle 1 and Angle 2 are adjacent angles.

Which equation represents the slope-intercept form of the line below?

Answers

Answer: ( D )

Step-by-step explanation:

They are both positive because in the graph it shows that they are not intercepting in in a negative sign.

hey cutie pls help me !!​

Answers

Looks like it should be D since they spent 0.08 on tickets and get 1.92. Then shirts are $55 so we subtract this from the profit.

What single decimal multiplier would you use to decrease by 2% followed by a 7% decrease?

Answers

Here is your answer.

(4x – 17)
(5x - 1)

What is x?

Answers

Answer:

9x-18=90 9x=108 x=12,,,,,,,,,,,,,,,,

Does anyone know the answer to this help fast!

Answers

180-90=3x
90=3x
X=30

90+x+y=180
90+30+y=180
120+y=180
Y=60
I think it is 60. 60 is the answer.

A round tabletop is 6' in diameter. A sample jar of paint will cover 30 square feet. Is there enough paint to cover the tabletop?​

Answers

Answer:

Yes, there is enough paint to cover the table top.

Step-by-step explanation:

We are told in the above question that the table top is round = circular

The area of a circle = πr²

Diameter = 6 feet

Radius = Diameter/2 = 6 feet/2 = 3 feet

Area of the table top= π × 3²

= 28.27 square feet

We are told that the a sample jar will cover 30 square feet.

Therefore, yes, there is enough paint to cover the table top.

Solve the following equation for x.

x2+19x+18=8x
Enter one solution in the first box. If there are two solutions, enter the second solution in the second box.

x =

x =

Answers

Answer:

=−2

=−9

Step-by-step explanation:

Walter scored a 1,285 on a national test in January. He
decided to take the test in March again and scored 1,230.
What is the percent decrease in Walter's test scores?
ROUND TO THE NEAREST HUNDREDTH.

Answers

Answer:

4.28%

Step-by-step explanation:

1285 - 1230=55

(55/1285) ×100%=4.28%

Solve each equation
For points!!

Answers

Answer:

x = 10

x = -7

x = -8

x = 60

x = 44

Step-by-step explanation:

Pls mark me brainliest

Mr.davis, the volleyball coach, has 7 outstanding players. He will draw one name out of a jar to decide who stays on the bench. Brianna, one of the outstanding players, wants to know what is the probability of her not playing?​

Answers

Answer:

7/1

Step-by-step explanation:

There are 7 players if the coach randomly draws a name that determines who stays on the bench there is a 1/7 chance Brianna will stay on the bench because there are 7 people and Brianna is 1  of them

456*43-53(45)................help

Answers

Answer: 17223

Step-by-step explanation:

You have to multiply your

Step-by-step explanation:

456×43-53(45)=

19608-53(45)

19608-2385

17223 Answer

Select the correct answer. which expression is in its simplest form?

Answers

The answer is a the first one

Desiree works at a dessert counter in the food court of a mall. The dessert counter sells cupcakes and cookies. Each cookie costs $1.25. Desiree sells 12 cookies and 8 cupcakes for a total of $33.00.


The cost of 1 cupcake is

$1.65
$1.92
$2.06
$2.25

Answers

Answer:

2.25$

Step-by-step explanation:

The cost of each cupcake the food court mall sells is $2.28.

What is a numerical expression?

A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.

Given, Desiree works at a dessert counter in the food court of a mall. The dessert counter sells cupcakes and cookies.

Each cookie costs $1.25 and assuming the cost of the cupcake is x.

∴ (1.25×12) + (8x) = 33.30.

15 + 8x = 33.30.

8x = 18.3

x = 2.28

learn more about numerical expressions here :

https://brainly.com/question/29199574

#SPJ5

whats 2 +2 plss help me i need help

Answers

The answer to this question is 4
2+2=4 hope this helped lol

ill give brainIiest to the right answer

Answers

Answer:

[tex]K=6[/tex]

Step-by-step explanation:

In f(x) graph the vertex is at x=4

In g(x) the vertex at x=-2

so, the graph is shifted 6 units left. when the graph is shifted k units left then f(x) becomes f(x+k)

here the  graph is 6 units left so.. K= 6

[tex]-----------[/tex]

hope it helps...

have a great day!!

Which of the following is NOT an arithmetic sequence?

1) 15, 9, 3, -3, -9

2) 4, 7, 10, 13, 16

3) 1, 2, 3, 4, 5

4) 2, 4, 8, 16, 32

Answers

Answer:

2, 4, 8, 16, 32

Step-by-step explanation:

HELP ASAP PLEASE WILL GIVE BRAINLEAST (no links scammers)

Answers

Answer: B

Step-by-step explanation: C and D are not correct because if you add up the x's, they will not be equal. A is only true for the first graph, and nit the second, so it won't be A. B is the best answer.

How many terms are in 3x + 2y - 5?

Answers

Answer:

3

Step-by-step explanation:

3x=1 term

+2y= 2 term

-5= 3 term

Answer:

there are 3 terms in this equation

Step-by-step explanation:

3x --- this is the 1st term

2y --- this is the 2nd term

5 --- this is the 3rd term

(brainliest plz)

hey brainless riddle me this

Answers

i’m brainless i don’t know any riddles
What’s the riddle and I bet that I can

help pls ! i need help please

Answers

Answer:

115 degrees

Step-by-step explanation:

The line RQ meets at 115 degrees (Look at the bottom numbers)

It's not 65 degrees because the angle is obtuse.

Help plz what is X AND PLZ EXPLAIN

Answers

Hi there!

[tex]\large\boxed{x = 16}[/tex]

.5x + 3 = 11

To begin, we can subtract 3 from both sides:

.5x + 3 - 3 = 11 - 3

.5x = 8

To cancel out the .5, we must multiply both sides by 2: (.5 × 2  = 1)

2(.5x) = 2(8)

x = 16.

What is the name ?

Help please

Answers

Answer:

chord

Step-by-step explanation:

A chord of a circle is a straight line segment whose endpoints both lie on a circular arc

What is 100-80 ÷ 4 + (6-3)

Answers

Answer:

83

Step-by-step explanation:

100-80 ÷ 4 + (6-3)=100-20+3=80+3=83

Answer:

83

Step-by-step explanation:

100-80 ÷ 4 + (6-3)

100-80/4 +  3

100- 20 + 3

 80 + 3

    83

Will give brainist help!!!

Answers

Answer:

A

Step-by-step explanation:


A butcher shop is selling steaks 2 for $7.00. The butcher sells 29 steaks today. How much money did the butcher make selling steaks today?

Answers

Answer:

The butcher made $101.50

Step-by-step explanation:

2 for 7.00

1 steak would be 7.00 divided by 2

7 divided by 2 is 3.5

1 steak is 3.50 dollars

29 steaks in total

29 multiplied by 3.50 is 101.5

HELP PLEASE 15 POINTS

Answers

The measurement of angle L is 65

0.5 gallons plus 0.5 gallons plus 2 gallons plus 1gallon basicly i need to know how to add gallons.

Answers

Answer: 5 gallons

Step-by-step explanation: the gallons are in decimal points. 1/2 + 1/2 + 2 + 1 = 5. the .05 and 1/2 are the same thing. the .5 + .5 equals 1

The answer would be 4 gallons.
You add them like you would any other decimals and numbers. .5+.5=1 then 2+1+1=4

help please!

1.What is the y intercept of the function?
2.What is the first difference?
3.Write an equation to represent the function given in the table. Remember we write linear functions in y=mx+b form!

Answers

Answer:

1.What is the y intercept of the function?

y-coordinate when x = 0, take from the table.

(0, 5)

2.What is the first difference?

Difference of y-values. This is the slope

7-5 = 2

3.Write an equation to represent the function given in the table

Use the first difference and the y-intercept: b = 5, m = 2

y = 2x + 5

answer choices:
A) 14.1 cm
B) 18.8 cm
C) 37.7 cm
D) 75.4 cm

Answers

Answer:

B. 18.8cm

Step-by-step explanation:

Circumference = π x Diameter

The given diameter here is 6cm and we need to use 3.14 for π so:

Circumference = 3.14 x 6

Circumference = 18.84 = 18.8 (1.d.p)

Therefore B is correct.

Hope this helped!

18.8 aka B I hope this helps
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