Solve the following system of equations using the substitution method.
The problem- y= -2x+11
3x + y = 18

Answers

Answer 1

Answer:

x = 7

y = -3

Step-by-step explanation:

the first equation is already solved for 'y' so we can substitute '-2x+11' for 'y' in second equation

3x + (-2x + 11) = 18

x + 11 = 18

x = 7

solve for 'y'

y = -2(7) + 11

y = -14 + 11

y = -3


Related Questions

Substitute
24y = -6 ( ) there is a blank in the parentheses I just need 1 number

Answers

Answer:

y=-4

Step-by-step explanation:

24y=-6

24y/24y=24y/-6

y=-4

Please help will give Brain to right person

Answers

okay so i’m 100% because i just started learning this but i think ASA

A line segment has endpoints at A(-1, - 8) and B(5, -4). Which of the following are the coordinates of the
midpoint of AB??

Answers

Answer:

(2, -6)

Step-by-step explanation:

(2,-6) because that's the middle of you count.

Can someone help me please :)

Answers

Answer:

-2   :)

Step-by-step explanation:

-2 is the correct answer. I hope this helps :)

Theequationforlinefcanbewrittenasy = –3x − 6
. Line
gisparalleltolinefandpassesthrough
(6, –8) . What
istheequationofline
g ?


Write the equation in slope-intercept form. Write the numbers in the equation as proper fractions, improper fractions, or integers.

Answers

Answer:

Step-by-step explanation:

f(x) = -3x-6

slope of line is -3

parallel lines have the same slope

point-slope equation for line of slope -3 that passes through (6,-8):

y+8 = -3(x-6)

put equation into slope-intercept form:

y = -3x + 10

Answer:

[tex]y = - 3x + 10[/tex]

Step-by-step explanation:

We are asked to find a line parallel to line f

[tex] - 3x - 6[/tex]

and passes through 6,-8.

Parallel lines have the same slope so our new line will also has-3 as it slope

wo using the slope intercept form let update our equation so far.

Slope intercept is

[tex]y = mx + b[/tex]

where m is the slope and b is the y intercept

plug in -3 for the slope since our new equation must be parallel.

[tex]y = - 3x + b[/tex]

Now plug 6 for x and -8 for y.

[tex] - 8 = - 3(6) + b[/tex]

[tex] - 8 = - 18 + b[/tex]

[tex]b = 10[/tex]

Our equation is

[tex]y = - 3x + 10[/tex]

Someone PlzZzZzZ Help MEeEeE

Answers

Answer:

y - 1 ≤ 0.5

Step-by-step explanation:

Solve the following:

4³/(-12+2²)
--------------------------
(2x3)²+(-5x2x3)+2

Answers

Answer:

1. =−8

2. =4x^6−5x^5+2

Step-by-step explanation:

happy to help ya :)

Tiles with the letters A, B, C, D, E, F, G, and H written on them are placed in a bag. Malik draws out one letter at random. Which statements about the situation are true? Check all that apply.

The number of possible outcomes is 8.

The probability of drawing the tile with E written on it is 1/4

P(vowel) = 1/4

P(vowel) + P(consonant) does not = 1

Choosing one letter at random is a simple event.​

Answers

Answer:

P(vowel) = [tex]\frac{1}{4}[/tex]

Choosing one letter at random is a simple event.​

Step-by-step explanation:

P(vowel) =  [tex]\frac{1}{4}[/tex]

This is because there are 2 vowels so the probability [tex]\frac{2}{8}[/tex] is  which can be simplified to [tex]\frac{1}{4}[/tex] .

Moreover, Choosing one letter at random is a simple event.

The definition of a simple event is one that can only happen in one way, or in other words, it has a single outcome.

Malik's probability of drawing one letter at random is 1/4.

Probability calculation:

P (vowel) = [tex]\bold{ \frac{1}{4}}[/tex] It's good to select one letter at random. ​P(vowel)    = [tex]\bold{ \frac{1}{4}}[/tex]Since there are two vowels, the probability is  [tex]\bold{ \frac{2}{8}}[/tex], is equal  [tex]\bold{ \frac{1}{4}}[/tex].Furthermore, picking one letter at random is an easy procedure.A simple event is one that can only happen one way or has just one conclusion.

Find out more about the probability here:

brainly.com/question/11234923

x cm
8 cm
2x cm
1 cm
The longest side on the shape is 12 cm
Work out the value of x.

Answers

Answer:

The value of x must be 6. Because as it is said that the longest side of this shape is 12 therefore, if 2 is multiplied with 6 one of tge sides is 12, which is the biggest.

Hope it helps!!

Can someone help me with this problem? 3 + (-7 + y)

Answers

Answer:

−4+y

Step-by-step explanation:

3+(−7+y)

Subtract 7 from 3 to get −4.

−4+y

Select all ordered pairs that correspond to input-output pairs of the function y = −7x + 6.

Answers

Answer:

There are no options, so i will answer in a general way.

In a function:

y = f(x)

The output is y, and the input is x, and the ordered pair is written as (x, y)

In this case, we have the function:

y = -7*x + 6

Then we need to have different inputs and then find the outputs for each.

For example, if x = 1.

y = -7*1 + 6 = -1

Then we have the ordered pair (1, - 1)

if x = 0

y = -7*0 + 6 = 6

then we have the ordered pair (0, 6)

The general ordered pair is written as:

(x, y =  -7*x + 6)

or:

(x,   -7*x + 6)

Where you only need to replace the value of x.

graph the equation...
0.5s+4a=15​

Answers

Answer: look at the picture if you want me to solve for s or a here

Step-by-step explanation: hope this help

Select all that apply.

Which of the following are proportions?

Answers

Answer:

A, C and D

Step-by-step explanation:

both A, C and D are both porportions because they both equal the other fraction.

Answer:

1, 3, 4

Step-by-step explanation:

i had this on my test- im doing it rn.

-2(v - 2) = -3 – 2v​

Answers

Answer:

no solution

Step-by-step explanation:

Given

- 2(v - 2) = - 3 - 2v ← distribute left side

- 2v + 4 = - 3 - 2v ( subtract 4 from both sides )

- 2v = - 7 - 2v ( add 2v to both sides )

0 = - 7 ← not possible

This indicates the equation has no solution

5 divided by 6.25 please

Answers

Answer:

0.8

Step-by-step explanation:

5 ÷ 6.25 = 0.8

You can do this on a calculator.

Find the slope between the points (-1,5), (4, 8)​

Answers

Answer:

Are you sure thats all you are given?

y = x^2 + 8x + 15 find the y-intercept

Answers

Answer:

15

Step-by-step explanation:

To find the y-intercept, just set the x value to 0:

[tex]y=0^2+0x+15=15[/tex]

Can you Help me please

Answers

Answer:

-1

Step-by-step explanation:

mn = -3 because 3 × -1 = -3

p^2 = 4 because 2^2 = 4

Then 4 + -3 = -1

Answer:

I have attached a picture of me solving the equation. If you have any questions I am here to help. Hope this helps, thank you :) !!

PLEASE HELP IN ALGEBRA, LAST QUESTION!!

Answers

Step by step explanation:

Question 1:

Let's simplify step-by-step.

−3x2+6x+5x2−2

=−3x2+6x+5x2+−2

Combine Like Terms:

=−3x2+6x+5x2+−2

=(−3x2+5x2)+(6x)+(−2)

=2x2+6x+−2

The parks department is planting trees. Maple trees cost $50 and Oak trees cost $25. The tree planting budget is $800. What is the x-intercept in this situation

Answers

Answer:

looooook ittttt uppppppps bwbebee

Step-by-step explanation:

bagsywbwbebne

e

e

e

e

e

e

e

ejdjdndndeebbebe

Answer: 50 or 25

Step-by-step explanation:

i apologize if i am wrong

What is 1+1? I need help fast.

Answers

Answer:

1+1 is 2

Hope it will help :)

Kaytelyn makes $10 an hour and receives weekly bonus of $25. How many hours dose she need to work this week to make more than $250

Answers

Answer:

She Has To Work For Around 23 Hours.

How I Found The Answer:

10 x 23 = 230 Dollars

230 + 25 = 255 Dollars

What is the y-intercept of y=5x-2

Answers

Answer:

the y intercept is -2

Step-by-step explanation:

the y intercept is always the value on the end

Answer slope-intercept form is y = mx+ b y = m x + b, where m m is the slope and b b is the y-intercept. y = mx +b y = m x + b Find the values of m m and b b using the form y = mx+b y = m x + b.

Step-by-step explanation:

PLEASE HELP ASAP Will MAKE BRAINLIST

Answers

Answer:

The second answer is correct

(Smart people will get this) #10

Answers

Answer:

OH OKK NICE TELLING ME

Step-by-step explanation:

Steve is trying to figure out the ages of his 3 uncles.

Uncle Bill is twice as old as Uncle Tom. Uncle Keith is
5 more than Uncle Bill. He knows that the sum of their ages is 75.

What are the ages of his 3 uncles?

Answers

Tom = 14
Bill = 28
Keith = 33


Tom = x
Bill = 2x
Keith = 2x+5

5x+5 = 75
5x = 70
x = 14

Tom = x = 14
Bill = 2x = 28
Keith = 2x+5 = 33

Find the equation of the line through point (−3,8) and perpendicular to y=27x+117.

Answers

Answer:

y - 8 = (-1/27)(x + 3)

Step-by-step explanation:

the slope of a line perpendicular to the given y = 27x + 117 is the negative reciprocal of 27, that is, -1/27.  Using the point-slope form  y - k =m(x - h)  to write the new equation, we get:

y - 8 = (-1/27)(x + 3)

Write an equation of the line that passes through (−4,−5) and is parallel to the line y=−4x−1.

Equation: y=

Answers

Answer:

step 1. y - y1 = m(x - x1). This is the standard line equation given a point and a slope.

step 2. parallel lines have the same slope so the slope is -4.

step 3. y - (-5) = -4(x - (-4)).

step 4. y + 5 = -4x - 16.

step 5. y = -4x - 21.

I need help! I will give brainliest!

Answers

Answer:

2nd linear equation represents the graph

Step-by-step explanation:

Answer: C

Step-by-step explanation:

A supersized laundry detergent has 60% more detergent than the regular size. The supersized has 144 ounces. How many ounces of the detergent are in the regular size

Answers

Answer:

90 ounce in regular size

Step-by-step explanation:

The number of ounces of the detergent are in the regular size is 90 ounces.

How to find the percentage from the total value?

Suppose the value of which a thing is expressed in percentage is "a'

Suppose the percent that considered thing is of "a" is b%

Then since percent shows per 100 (since cent means 100), thus we will first divide the whole part in 100 parts and then we multiply it with b so that we collect b items per 100 items(that is exactly what b per cent means).

We need to Write the percent as a fraction in simplest form

16.24%

So, we can rewrite it as;

16.24 / 100

16 and 24/100 or 16 6/25

So the percent as a fraction is 16 6/25

We are given that;

Percentage of detergent=60%

Number of ounces= 144

Now,

To find how many ounces of detergent are in the regular size, we need to use the information that the supersized has 60% more detergent than the regular size. This means that if we let x be the number of ounces in the regular size, then 144 is equal to x plus 60% of x. We can write this as an equation:

144 = x + 0.6x

To solve for x, we need to combine like terms and isolate x on one side of the equation:

144 = 1.6x x = 144/1.6 x = 90

Therefore, by the given percentage the answer will be 90 ounces.

Learn more about percent here:

https://brainly.com/question/11549320

#SPJ2

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