Question 5
On problem #18, which variable will be the easiest to isolate in order to solve the system using
substitution?
A: x, in the top equation
B: y. in the top equation
C: x, in the bottom equation
D: y, in the bottom equation
Can someone please please please help me!

Question 5On Problem #18, Which Variable Will Be The Easiest To Isolate In Order To Solve The System

Answers

Answer 1
The answer is B because you would subtract 2x so the -y is by itself and then since there is a invisible -1 in front of the y you would divide everything by that -1 giving you the answer y=2x + 7 and you can just substitute that equation in for y in the bottom equation

Related Questions

Can someone please write an equation to model this scenario which relates to the first two questions. I need it ASAP!

Matt works at a job where he makes a base pay of $200 per week and $50 per sale. (Use an x and a y. Y is the total amount he makes and x is the number of sales.)

: )

Answers

Answer:

y = 50x + 200

Step-by-step explanation:

the 200 is the y intercept because it is where his pay starts, so even if Matt doesnt make any sales he will still get 200 that week

the slope (50) is determined because that is what will change

if he makes 2 sales he will make 100 + 200 that week, and if he makes 4 sales he will make 200 + 200 that week and so on

What is 3 /49 as a decimal?

Answers

Answer: 3/49 as a decimal is 0.06122

EASY POINTS FOR Y'ALL!!!!!!

Answers

Answer:B

Step-by-step explanation:

Answer:

D, is the correct answer!!

Step-by-step explanation:

help for brainliest plsssssssssssssssssssssssssssssssssss

Answers

Answer:

32 canned goods per tub. There was one can left over.

Step-by-step explanation:

Answer:

32 in each tub with 1 left over I'm pretty sure

Step-by-step explanation:

think about how many times 5 can 161, then see what the number left over is. In this case, 5 can go into 161, 32 times with 1 left over

Write in slope intercept form given two points (1,2) and (-2,5)

Answers

I’m pretty sure it’s -1
How you solve this is y2-y1/x2-x1
So 5-2/-3-1 which would be -1

6th Grade Math Homework!
Will give brainiest!
15 Points!!
Please solve
ONLY ANSWER IF YOU HAVE THE ANSWERS
Don't need to explain
Keep in mind there are 2 pictures!
PLEASE HELP!! AND FAST!!

Answers

Where are the pictures??
What am I solving? There are no pictures.

Hot dogs come packed 10 in a package. Hot dog buns come packed 8 in a package.



If we want one hot dog for each bun for a picnic, with none left over, what is the least amount of each we need to buy?



How many packages of each item would we have to buy?

Answers

Answer:

5 hot dogs packs at least and 4 buns packs at least

Step-by-step explanation:

What is the first step in solving the following system of equations?

3 x + y = 23.
8 x + 2 y = 23.

Answers

Answer:

Solve the first equation for y

Step-by-step explanation:

Courtney drove 48 miles to her friends house she got there in a hour and 12 minutes how fast was she driving on average

Answers

Answer:

Yea she drove

Step-by-step explanation:

Answer:

40 mph

Step-by-step explanation:

s=vt

v = s/t

putt values

50 points! PLEASE HELP WITH THIS! Show how you got the answers!!! WIll mark as brainliest!!! DONT ANSWER IF YOU DONT KNOW IT!!

Answers

Answer:

8. 9.1

9. 12.2

Step-by-step explanation:

8. let x represent the missing side:

Using pythagoras theorem;

13.3² = x² + 9.7²

x² = 13.3² - 9.7²

x² = 82.8 taking the square root of both sides;

x = 9.1

9. let y represent the missing side:

Using pythagoras theorem;

y² = 10² + 7²

y² = 149 taking the square root of both sides;

y = 12.2

Lin runs 5 laps around a track in 4 minutes. How many minutes per lap is that?

Answers

Answer:

1.25 minutes per lap

Step-by-step explanation:


In order for Josh to graph the solution to the inequality 4x - 2y > 6, which of the following steps does he need to use? Select all that apply.

Shade above the line.
Solve the inequality as y < 2x-3.
Draw the line y=2x-3 as a solid line.
Draw the line y=2x-3 as a dashed line.
Shade below the line.
Solve the inequality as y> 2x-3.

Answers

Solve the inequality as y < 2x-3.

Draw the line y=2x-3 as a dashed line.

Shade below the line.

Josh needs to follow the steps to draw the required inequality graph.

Solve the inequality y < 2x - 3 by solving for the x and y-interceptDraw the straight line y < 2x - 3 as a dashed line (since we have less than sign )Shade below the line. (Below the line are shaded for inequality sign that is "less than")

Inequality expressions are expressions that are not separated by an equal sign.

Given the inequality expression 4x - 2y > 6,

Dividing through by 2 will give:

4x/2 - 2y/2 > 6/2

2x - y > 3

Make y the subject of the formula

-y > -2x + 3

y < 2x -3

For Josh to plot the inequality graph of y < 2x - 3, he needs to follow the process;

Solve the inequality y < 2x - 3 by solving for the x and y-interceptDraw the straight line y < 2x - 3 as a dashed line (since we have less than sign )Shade below the line. (Below the line are shaded for inequality sign that is "less than")

Learn more here: https://brainly.com/question/6874464

solve for c: c-7 ≥ -3

Answers

c> or =-3+7
c> or =4

Kendra knits hats. She starts with 334 yd of yarn. After knitting for 514 h, there is 118 yd of yarn left. At what rate does the amount of yarn change? Show your work.

Answers

Answer:

Step-by-step explanation:

Total yarn = 334 yards

Amount remaining = 118 yards

Amount knitted = 512

amount per hat =x

amount used = y

amount used = 334 - 118 = 514*x

y= 216= 514x

216 = 514 x         Divide by 514

216/514 = x

.42 yards/hat = x

Ivette buys a pack of 8 birthday cards for $1.20 using the nickels shown below. How much does he spend on each card??

Answers

Answer:

15 cents or 5 nickels

Step-by-step explanation:

It’s $1.20 for 8 birthday cards so you do 1.20 divided by 8.

1.20 divided by 8 is 0.15 which is 15 cents. 15 cents is equal to 5 nickels.

Hope this helps :)

What is the distance from L to M?

Answers

Answer:

B or A

But i would go with B

Step-by-step explanation:

Answer:

A. 14 units

Step-by-step explanation:

You can just count blocks down and right. (vertical and horizontal)

Expand and simplify
1: (2 ) a) 9( 3 – 10n ) -3 ( 10n + 1 )

Answers

Answer:

Hope it can help you .......

Mark me as a brainlist and follow me.....

Hurry please!

How do you put 14 1/2 into a calculator without the '/' ?

Answers

Answer:

well you do 1 divided by 2 which is 0.5

Step-by-step explanation:

Can someone help me with both these answers I’m marking brainliest

Answers

Answer:

X = 12/60%

60% = 0.6

X = 12/0.6

X = 20.

For the second one, multiply 350 by 0.02, which is just 2% in decimal form.

350*0.02 =7

That's 7 eggs.

Hope this helps!

PLEASE HELP PLS
Which of the following lineat functions have a rate of change that is greater than 14? ​

Answers

Answer

The third table has a gradient of 20, so third table is one of them.

The other one is the last case, For an hour, Fahim earning  $1010 so that is the rate per hour.  

Step-by-step explanation:

can someone check these and tell me which ones are in the wrong column, thanks

Answers

Answer:

∠2 and ∠5 should not be Alternate exterior angles. ∠2 and ∠11 can be Alternate exterior angles if that is an option. The rest is correct. As for consecutive interior angles, you have (∠3 and ∠9), (∠4 and ∠10), (∠7 and ∠13) and (∠8 and ∠14).

Step-by-step explanation:

Alternate exterior angles are basically like the angles that are the combination of a vertically opposite angle and a corresponding angle. Since the vertical lines are not parallel, ∠2 and ∠5 cannot be Alternate exterior angles.

Consecutive interior angles are any pair of angles that are within a pair of parallel lines and add up to 180°.

What is negative 3/2 divided by 11/6?

Answers

Answer: 0.81818181818

Step-by-step explanation:

Answer:

-9/11

Step-by-step explanation:

You have to find the reciprocal of the number you're dividing by. In your case the number you are dividing by is 11/6. Just flip 11/6 to get the reciprocal, and the multiply it by -3/2. 6/11 is the reciprocal of 11/6.

[tex]-\frac{3}{2} * \frac{6}{11} = -\frac{18}{22}[/tex]

Simplify by dividing by 2.

-9/11 is the answer.

HOPE THIS HELPS!!

which shows the use of the associative property?

Answers

Answer:

The correct answer is Option 2:

[tex]7+(\frac{1}{5}+n) = (7+\frac{1}{5})+n[/tex]

Step-by-step explanation:

Associative property consists of three quantities. Associative property for addition states that the result of adding three numbers will be same no matter what the order of addition is.

Let a,b and c be three numbers

Then associative property can be stated as:

[tex]a+(b+c) = (a+b)+c[/tex]

Now looking at the options it can be observed that the following choice shows the associative property

[tex]7+(\frac{1}{5}+n) = (7+\frac{1}{5})+n[/tex]

Hence,

The correct answer is Option 2:

[tex]7+(\frac{1}{5}+n) = (7+\frac{1}{5})+n[/tex]

Answer:

its B

Step-by-step explanation:

i got it right on Edg

The length of a rectangle is 2 feet less than 4 times the width. The area is 256ft2. Find the dimensions of the rectangle.

Answers

Answer:

[tex]W = 8.255[/tex]

[tex]L = 31.02[/tex]

Step-by-step explanation:

Let L = Length and W = Width.

So:

[tex]L = 4W - 2[/tex]

[tex]Area = 256[/tex]

Required

Find L and W

Area is calculated as:

[tex]Area = L * W[/tex]

Substitute 4W - 2 for L and 256 for Area

[tex]Area = (4W - 2) * W[/tex]

[tex]256 = (4W - 2) * W[/tex]

Open Bracket

[tex]256 = 4W^2 - 2W[/tex]

Divide through by 2

[tex]128 = 2W^2 - W[/tex]

Equate to 0

[tex]2W^2 - W - 128 = 0[/tex]

An equation [tex]aw^2 + bw + c = 0[/tex] has the roots

[tex]W = \frac{-b\±\sqrt{b^2 - 4ac}}{2a}[/tex]

Where

[tex]a = 2[/tex]   [tex]b = -1[/tex] [tex]c = -128[/tex]

So:

[tex]W = \frac{-(-1)\±\sqrt{(-1)^2 - 4*2*-128}}{2*2}[/tex]

[tex]W = \frac{1\±\sqrt{1 +1024}}{4}[/tex]

[tex]W = \frac{1\±\sqrt{1025}}{4}[/tex]

[tex]W = \frac{1\± 32.02}{4}[/tex]

[tex]W = \frac{1+ 32.02}{4}[/tex] or [tex]W = \frac{1 - 32.02}{4}[/tex]

[tex]W = \frac{33.02}{4}[/tex] or [tex]W = \frac{-31.02}{4}[/tex]

[tex]W = 8.255[/tex]  or [tex]W = -7.755[/tex]

But the dimension can not be negative.

So:

[tex]W = 8.255[/tex]

Recall:

[tex]L = 4W - 2[/tex]

[tex]L = 4 * 8.255 - 2[/tex]

[tex]L = 31.02[/tex]

Part B: Write one function for each option to describe the value of the investment f(n), in dollars, after n years. (4 points)

Number of years 1 2 3
Option 1 (amount in dollars) 1100,1210,1331
Option 2 (amount in dollars) 1100 ,1200,1300

Answers

Answer:

Option 1:

f(n) = 1000(1.1)ⁿ

Option 2:

1000 + 100n

Can you show steps on how to do 2 – 8x = -22 ? Thank you!

Answers

Answer:

x squared = 8x

Step-by-step explanation:

Move

8

x

to the left side of the equation by subtracting it from both sides.

x

2

8

x

=

0

Factor

x

out of

x

2

8

x

.

Tap for more steps...

x

(

x

8

)

=

0

If any individual factor on the left side of the equation is equal to

0

, the entire expression will be equal to

0

.

x

=

0

x

8

=

0

Set the first factor equal to

0

.

x

=

0

Set the next factor equal to

0

and solve.

Tap for more steps...

x

=

8

The final solution is all the values that make

x

(

x

8

)

=

0

true.

x

=

0

,

8

Chase read a total of 6 books over 2 months. After belonging to the book club for 4 months, how many books will Chase have read in all? Assume the relationship is directly proportional.

? books

Answers

Answer:

12

Step-by-step explanation:

Mrs. Brown uses 1/4 package of graph paper for each class. She needs 1 1/2 packages to serve all of her classes. How
many classes does Mrs. Brown teach?

Answers

The answer is 6.
1/4 goes into 1 1/2 6 times. :)

Answer:

I think the answer is 6 sorry if i'm wrong

Step-by-step explanation:

find out distinct 3 letter word that can be formed from using the word singapore​

Answers

Answer:

Sing

Gap

Nape

There are more than 3 distinct words

pls help me with this question.

Answers

Answer:

Option B

Step-by-step explanation:

Slope = Change in y / Change in x

Slope = (8 - 2) / {6 - (-4)}

Slope = 6 / (6 + 4)

Slope = 6 / 10

Slope = 3 / 5

So option B is your answer

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