Mathematics High School

Solve the system using substitution.
x + 2y = -6
6x + 2y = 4
([?], [ ]

Answers

Answer 1

Answer:

(2,-4)

Step-by-step explanation:

2y=-x-6                                        2+2y=-6

y=-1/2x-3                                      2y=-8

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

6x-x-6=4

5x=10

x=2

y=-4

Related Questions

How is triangle ABC being translated to triangle A'B'C'

Answers

Answer:

Both vertically and horizontally

Step-by-step explanation:

It moved down and to the side.

It translated to A’B’C’

A roller coaster accelerated from rest to 55 m/s by the time it reached the first hill. The roller coaster took 15 seconds to climb to the top of the hill. What was the acceleration of the coaster?

Answers

Answer:

I believe the acceleration is 3.66666666667 m/s

Step-by-step explanation:

Acceleration formula: a = vf - vi / t

Initial velocity: 0 (I believe it was 0, as it wasn't moving in the beginning)

Final velocity: 55 m/s

Time: 15 s

Substituting values: 3.66666666667 = 55 - 0 / 15

SOMEONE PLEASE HELP ME WITH THIS ILL GIVE YOU BRAINLY IF U GET IT RIGHT !!!!

Answers

It will not be filled until 2 pm because the pool is filling up at a rate of 600gal every 15 min.
600x20=12,000 gal at 12 pm
600x28=16,800 gal at 2pm
How I got the time was there are 60 minutes in an hour divide that by 15 equals 4. And there is 5 hours between 8-12 so 5x4=20

Luis and Arnold did their own car wash during the weekends this past Summer. They made a total of $1,200 together. They decided they were going to invest their money. So they invested in stocks for Tesla. The interest they are making is at 12%. How much money would they earn after 7 years?

Answers

Step-by-step explanation:

Amount they will earn=Principal+Interest

Interest=$1200×0.12×7=$1008

Amount=$(1200+1008)=$2208



ayuda please es mi examen​

Answers

what i speak english lol xd

Answer: B. 10

Step-by-step explanation: Hope this help :D

What is the value of f if 9f+11=3f+23

Answers

Answer:

f=2

Step-by-step explanation:

F = 2

9f+11
If f is two, 9f = 18.
11+18= 29

3f +23
If F is two, then 3f = 6.
6+23=29.

Well, look there- both answers are equal so F equals 2

F=2

Solve the proportional equation below: m+9/4=m+6/5

Answers

Answer:

0=−21/20

0Step-by-step explanation:

The function f(x) = 350 - 125x represents how
many miles f(x) the helicopter is from its destination
after x hours.
a. f(1) = 225, interpret this value in terms of context.

Answers

After one hour, the plane is 225 miles from its destination

Answer:

The helicopter is 225 miles from its destination and will reach the destination in 1 hr.

Step-by-step explanation:

What is the yyy-intercept of y=5y=5y, equals, 5

Answers

Using the slope-intercept form, the y-intercept is 5 5 . b=5

Step-by-step explanation:

wikipedia

Answer:

0,5

Step-by-step explanation:

:) Hope you guys have a good day!

I need help i don't understand ​

Answers

Answer:

50%

Step-by-step explanation:

50% aaaaaa.................

A cyclist rode 2.75 miles in 0.4 hours.How fast was she going in miles per hour.At this rate, how long will it take her to go 5.5 miles?​

Answers

Answer:

Its 12.5 miles per hour.

Step-by-step explanation:

Distance covered by cyclist=3.75 miles. Time =0.3 hours. Speed =3.75÷0.3=12.5

Carter has a fruit stand. In the morning, he has 25 1/2 pounds of peaches. He sells bags of peaches that each weigh 1 1/2 pounds. He will restock when he has less than 3 pounds of peaches left. Which solution represents how many bas of peaches, b, Carter will sell before he restocks?

Answers

Answer:

Carter will sell 17 bags of peaches before he restocks.

Step-by-step explanation:

Total pounds of peaches Carter have = [tex]25\frac{1}{2} = \frac{51}{2} = 25.5[/tex]

Weight of each bag = [tex]1\frac{1}{2} = \frac{3}{2} = 1.5[/tex] pound

Number of bag made = [tex]\frac{25.5}{1.5}[/tex]  = 17

The number is fully divided , it means no of peaches left = 0 < 3

So,

Carter will sell 17 bags of peaches before he restocks.

The number of bas of peaches, b, Carter will sell before he restocks is 17.

Calculation of the number of peaches:

Since he has 25 1/2 pounds of peaches. He sells bags of peaches that each weigh 1 1/2 pounds. He will restock when he has less than 3 pounds of peaches left.

So here

[tex]= 25.5 \div 1.5[/tex]

= 17

Learn more about solution here: https://brainly.com/question/2621564

Combine the radicals

Answers

The radicals never change in this situation. You just subtract 3 from 9 so you’ll get:
6(sqrt x)

guys can u help me im cunfused

Answers

Answer:

2k

Step-by-step explanation:

-k + 3k = 2k

PLEASE HELP ME GUYS ITS URGENT!!!!

Answers

Answer: c

Step-by-step explanation:

The answer is c because it is equal to 1024

Answer:

C. [tex]4^{5}[/tex]

Step-by-step explanation:

Lily was out at a restaurant for dinner when the bill came. She wanted to leave a tip of 19%. What number should she multiply the cost of the meal by to find the total plus tip in one step

Answers

Answer: she should multiply 0.19 to the original price and then add that to the total cost before the tip and there is your answer.

Step-by-step explanation:

A suit is on sale for $336, which is 36% less than the regular price.
What is the regular price?

Answers

your regular price is about 456

Answer:

I think 456.96

Step-by-step explanation:

Please help explain how to do this I will give brainliest!!

Answers

Answer:

30 feet for each sloped beam

Step-by-step explanation: if you tak

the 8 away from the bord that is holding up the sloped beams it leaves you with 60 feet all together for both beams added up

Evaluate the following expression: 8x - 6 - 7y + 3 use x=3 and y=6

Answers

Answer:

-27

Step-by-step explanation:

8x - 6 - 7y + 3

X = 3 Y = 6

8(3) - 6 - 7(6) + 3

8 x 3 = 24

7 x 6 = 42

24 - 6 - (42 + 3)

(24 - 6) - 45

18 - 45 = -27

3(5+4y)+8-2y how to do this plz

Answers

Answer:

[tex]3\left(5+4y\right)+8-2y=10y+23[/tex]

Step-by-step explanation:

Given

As the expression is given by

[tex]3(5+4y)+8-2y[/tex]

To determine

Simplify the expression

Let us simplify the expression

[tex]3(5+4y)+8-2y[/tex]

Expand 3(5 + 4y) = 15 + 12y

[tex]3\left(5+4y\right)+8-2y=15+12y+8-2y[/tex]

grouping like terms

                              [tex]=12y-2y+15+8[/tex]

                              [tex]=10y+23[/tex]

Therefore,

[tex]3\left(5+4y\right)+8-2y=10y+23[/tex]

help me plz for 20 points​

Answers

Answer:

i believe DEC is 70 degrees

just answer number 5 pls

Answers

Step-by-step explanation:

hope that helps . the process is shown in the above picture.

1. - 9 - 28 = -9+
Need answers

Answers

Answer:



-37=-9

hope this help

a line that includes the point (5, 1)and has a slope of 1

Answers

point slope form:
y-1 = 1(x-5)
y-1 = x-5

slope intercept form:
y = x-4

standard form:
-x + y = -4

A man has 33 coins in his pocket, all of which are dimes and quarters. If the total value of his change is 630 cents, how many dimes and how many quarters does he have?

Answers

Answer:

20 quarters and 13 dimes

Step-by-step explanation:

20 x 25 = 500

13 x 10 = 130

550 + 130 = 630

7-x=-2

find the variable

Answers

Answer:

Step-by-step explanation:

7-x=-2

-x=-2-7

-x=-9

x=9

PLEASE HELP!! I’ve been stuck on this problem for a while!!!!!!!!!!

Answers

Answer:

What are the options?

Step-by-step explanation:

I'll do it once it the options

For the function f(x) = -3(x-1) find f(o).​

Answers

Answer:

f(0) = 3

Step-by-step explanation:

To evaluate f(0), substitute x = 0 into f(x) , that is

f(0) = - 3(0 - 1) = - 3 × - 1 = 3

mr rolando sold the house and that at 10, 500,000.00 if he will receive 4% commansion, how much his commansion? ​

Answers

Given:

Mr. Rolando sold the house and that at 10,500,000.00.

Commission percent = 4%

To find:

The amount of commission.

Solution:

We have,

Commission percent = 4%

Commission = 4% of selling price of the house.

                     = [tex]\dfrac{4}{100}\times 10,500,000[/tex]

                     = [tex]4\times 105,000[/tex]

                     = [tex]420,000[/tex]

Therefore, the amount of commission is 420,000.

use 3.14 for and round answers to the nearest tenth the diameter of the circle is 30

Answers

3.14 stays the same cuz 1 is in the tenths slot

and i think the answer is right

Step-by-step explanation:

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