Please help me solve this problem.

Answers

Answer 1

What is the question?

Related Questions

7(x-2)=28 Can somebody help me and show the steps?

Answers

Since the 7 is in front of the parentheses you must multiply it by everything inside the parentheses. 7 times X is 7X and 7 times -2 is -14. Then you need to make the X be by itself on one side, to do that you have to add 14 to -14 to make it disappear, and also add 14 to the other side, to 28. Then you divide both sides by 7 to make X be by itself.

7(x-2)=28
7X-14=28
7x=42
X=6

Which equation does the graph below represent?

A coordinate grid is shown. The x axis values are from negative 5 to positive 5 in increments of 1 for each grid line, and the y axis values are from negative 20 to positive 20 in increments of 4 for each grid line. A line is shown passing through the ordered pairs negative 4, 16 and 0, 0 and 4, negative 16.

y = fraction 1 over 4x

y = 4x

y = fraction negative 1 over 4x

y = −4x

Answers

Answer:

The answer is D!! Trust me I have took this quiz and got it right.

Step-by-step explanation:

Have a good time on your test!

Answer:

The answer is B! trust me

Step-by-step explanation:

The equation y+ 3 = 5(x - 3) represents a linear function. What is the y intercept of the equation?

Answers

Answer:

-18

Step-by-step explanation:

If you're looking for the y-intercept for this equation this means that x = 0.

So substitute x as 0 in the equation and you'll get the following.

y + 3 = 5 (0 - 3)

y + 3 = -15

y = -18

x + y = 5.90
2x + 4y = 16.80

Answers

What are you looking for ?

2+4y(5.90-y)=16.80

We move all terms to the left:

2+4y(5.90-y)-(16.80)=0

We add all the numbers together, and all the variables

4y(-1y+5.9)+2-(16.8)=0

We add all the numbers together, and all the variables

4y(-1y+5.9)-14.8=0

We multiply parentheses

-4y^2+23.6y-14.8=0

a = -4; b = 23.6; c = -14.8;
Δ = b2-4ac
Δ = 23.62-4·(-4)·(-14.8)
Δ = 320.16
The delta value is higher than zero, so the equation has two solutions
We use following formulas to calculate our solutions:
y1=−b−Δ√2ay2=−b+Δ√2a

y1=−b−Δ√2a=−(23.6)−320.16√2∗−4=−23.6−320.16√−8

y2=−b+Δ√2a=−(23.6)+320.16√2∗−4=−23.6+320.16√−8

The temperature dropped 20 degrees from noon to midnight. The temperature at midnight was 24°F. Write and solve an equation to find the temperature at noon?

Answers

x - 20 = 24

Add 20 to both sides

x = 24 + 20 = 44

Jenny makes bottle cap necklaces for the Bottle Cap Boutique. Each necklace has 6 small bottle caps on it. If she has 2,520 bottle caps, how many necklaces can she make?

Answers

Answer:

420

Step-by-step explanation:

Samantha invested $880 in an account paying an interest rate of 3.1% compounded
continuously. Assuming no deposits or withdrawals are made, how long would it
take, to the nearest tenth of a year, for the value of the account to reach $1,270?

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Answer: 11.8

Step-by-step explanation:

Write an inequality for the graph below.
'न
34
10
।। 12 13 14

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Answer:

i like cheese wbu hahahahahaha

If the measure of AngleB is 40°, what measures can AngleA and AngleC be? Select the three correct answers. 20° and 30° 30° and 110° 55° and 85° 60° and 90° 70° and 70°

Answers

Answer:

30° and 110°

55° and 85°

70°and 70°

Step-by-step explanation:

Given that :

Angle B = 40°

Sum of angles in a triangle :

Angle (A + B + C) = 180°

A + 40 + B = 180

A + C = 180 - 40

A + C = 140°

From the Given options ;

The sun of the Angles Given must add up to 140°

Hence,

30° and 110° = 140°

55° and 85° = 140°

70°and 70° = 140

explain why 1/12 + 1/2= 7/12

Answers

Answer:

1/12 + 1/2 = 1/12 + 6/12 - 1+6/12 = 7/12

Step-by-step explanation:

hope this makes sense

Step-by-step explanation:

1/2 of 12/12 is 6/12.

So, this means: 1/12 + 1/2 = 7/12

1/12 + 6/12 = 7/12

solve the equation t8/t2 = _____

Answers

Answer:

[tex]t^{6}[/tex]

Step-by-step explanation:

I am going to assume exponents for this question.

[tex]\frac{t^{8}}{t^{2}}[/tex]

When dividing exponents with the same base, it is simply subtraction, so 8 - 2 = 6 which produces the answer.

You are making curtains for your little sister's dollhouse. There are 24 windows on the dollhouse and each
needs 3.75 inches of fabric for curtains. How much fabric will you need?
(please help I only have a couple of minutes)

Answers

is it 90? sorry if it’s wrong

Answer:

90 inches

Step-by-step explanation:

24 x 3.75 which is the same as 24 x 3 3/4 which is the same as

24 x 15/4 = 6 x 15 = 90

Nancy has 1/3 of a cup of strawberries. She wants to share them with her 4 friends. How much will each of her friends get?

Answers

Each friend will get 1/12 cup of strawberries because 1/3 divided by 4 equals 1/12

The trend line passes through (10,9) and (35,0). Write an equation for the trend line.

Answers

Answer: Solution :

Step 1 :

Make a scatter plot of Lily’s running data.

Step 2 :

To draw a trend line, use a straight edge to draw a line that has about the same number of points above and below it. Ignore any outliers.

Step 3 :

Find the slope of the trend line.

The line passes through points (2, 20) and (4.5, 45).

Use the slope formula.

m = (y2 - y1) / (x2 - x1)

Substitute x1, = 2, y1 = 20, x2 = 4, and y2 = 45.

m = (45 - 20) / (4.5 - 2)

m = 25 / 2.5

m = 10

Step 4 :

Find the y-intercept of the trend line.

Slope-intercept form equation of a line :

y = mx + b

Plug y = 20, m = 10 and x = 2.

20 = 10 · 2 + b

20 = 20 + b

Subtract 20 from both sides.

0 = b

Step 5 :

Use your slope and y-intercept values to write the equation.

Slope-intercept form equation of a line :

y = 10x + 0

So, the equation for the trend line is

y = 10x

Example 2 :

David records the number of chapters and the total number of pages for several books as given below.

No. of chapters

No. of pages

130

125

170

160

Step-by-step explanation:

can you help me solve the linear equation algebraically y=-x-3. y=-2x-8

Answers

Answer:

I can't it's to hard try studying

Answer:
x=-5
y=2

Explanation:
Since both of these equations are equal to y, they have to be equal to each other. Set them equal to each other like this: -x-3= -2x-8. Multiply everything by negative 1 to get rid of the negative signs. The equation will look like this: x+3= 2x+8. Than subtract the x from both sides. Than subtract 8 from both sides. That should get you to x=-5. Than plug in -5 into the x value for one of the linear equations. It will get you 2 for the y.

Brainlist for correct answer!

Answers

Answer:

answer is c

Step-by-step explanation:

the answer is B.b=5.5mA=70.8mc82.2

Which table represents a function?
Group of answer choices

Answers

Answer: The answer is C

Step-by-step explanation: If you look at the x’s it is the only one that doesn’t have x’s repeated

Evaluate the exponential function
f(x) = 3x ; x = -2

Answers

Answer:

-6

Step-by-step explanation:

Plug (-2) in for X in the equation

3(-2)

-6

Which of the following quantities are to the left of zero on a number line? Select three that apply.
A The opposite of 7
B The opposite of -9
С
3
D
-4
m

Answers

Answer:

A, D, and E

Step-by-step explanation:

because they are negative

Simplify the expression 6w + + 3w.

Answers

Answer:

Step-by-step explanation:

they have the same terms so you can add them together. 6+3=9 and keep the term (w)

therefore 6x+3w=9w

Answer:

add the numbers if he variables are the same

therefore you add 6 and 3 to get 9

Hope this helped!

A bag of 12 ounces of popcorn costs $4.80. What is the unit rate? (in others words what is the cost for one ounce) *

Answers

Answer:

0.4

Step-by-step explanation:

$4.80 divided by 12 = 0.4

Answer:

2.50 per ounce

Step-by-step explanation:

divide 12 by 4.80

Can someone plz help

Answers

Answer:

it should be 1/4

Step-by-step explanation:

Answer:

1/4 because it depends on how many times you flip it

SOMEONE HELP ME PLEASE ASAP AND SHOW THE WORK I WILL MAKE YOU BRAINLIEST AND GIVE YOU A GOOD RATE!!!!! SOMEONE HELP ASAPPPPPPPPPPPPPP!!!!!!!!!!!!!

Answers

Answer:

5x+10=30

Step-by-step explanation:

sorry, it does not have any works/steps in forming this equation.

Solving equation(if needed):

5x+10=30

5x=20

x=4

Answer: you can count by fives 5,10 15,20,25,30

Step-by-step explanation:

Which data set could be represented by the box plot shown below?

Answers

The answer for this is D.

Answer:

Step-by-step explanation:

i gussed

Jack and beth are selling wrapping paper for a school fundraiser. Customers can buy rolls of plain wrapping paper and rolls of shiny wrapping paper. Jack sold 5 rolls of plain and 8 rolls of shiny for a total of $190. Beth sold of 5 rolls plain and 3 shiny for a total of $90. Find the cost of each roll of wrapping paper

Answers

Answer:

Cost of a roll of plain wrapping paper = $6

Cost of a roll of shiny wrapping paper = $20

Step-by-step explanation:

Let [tex]x[/tex] denotes cost of a roll of plain wrapping paper and [tex]y[/tex] denotes cost of roll of shiny wrapping paper.

Jack sold 5 rolls of plain and 8 rolls of shiny for a total of $190.

[tex]5x+8y=190\,\,\,(i)[/tex]

Beth sold of 5 rolls plain and 3 shiny for a total of $90.

[tex]5x+3y=90\,\,\,(ii)[/tex]

Subtract (ii) from (i).

[tex]8y-3y=190-90\\5y=100\\y=20[/tex]

Put [tex]y=20[/tex] in (ii)

[tex]5x+3(20)=90\\5x+60=90\\5x=90-60\\5x=30\\x=6[/tex]

Therefore,

Cost of a roll of plain wrapping paper = $6

Cost of a roll of shiny wrapping paper = $20

8th grade math! If you know the answer to this problem please interact(:

Answers

Answer:

the third one (-2,1)

Step-by-step explanation:

Answer:

Step-by-step explanation:

so solving the first one we get

y=2x+5

and the second one we get

y=5x+10+1

y=5x+11

substiuting we get

2x+5=5x+11

3x=-6

x=-2

and y= 1

so it would be C

if my answer helps please mark as brainliest.

Find the surface area of the figure shown. The surface area of the figure is
5.1 ft
4 ft
2 ft
8.2 ft

Answers

I think it’s the total , 19.3

FIRST CORRECT ANSWER GETS BRANLIEST !!!!!!!!

Answers

Answer:

4 - 1 = 3

10 - 6 = 4

Step-by-step explanation:

4х +7
у+ 1
Зу — 11
12x – 1

Answers

i need to type and make this 20 characters long but here you go

A . expression A
B . expression B
C . expression C
D . expression D

ill mark u brainliest if u answer !

Answers

Answer:

answer choice B.

Step-by-step explanation:

b hope this helps. :)

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