3(-4y+5)-8(-2y-4) can be written in the form (ay+b) by following the following steps:

(Step 1.) distributive property: -12y+15+16y+32

(Step 2) rearranging terms: -12y+16y+15+32

(Step 3) combining like terms: 4y+47

Which step was not done correctly?

A.Step 1

B.Step 2

C.Step 3

Answer:

Mathematics at Louisiana State University for their support in the ... Lesson 1: Positive and Negative Numbers on the Number Line—Opposite ... from Grade 5 of plotting points in the first quadrant and transition to locating ... Find and position integers and other rational numbers on a horizontal or ... tomorrow's water level.

Step-by-step explanation:

Answer:

Step-by-step explanation:

x = number of pushups he did

Answer:

the number of pushups done by Noah

Step-by-step explanation:

if Noah did x amount of pushups then Diego did twice as many, which is 2x therefore in this equation x represents the number of pushups done by Noah

Answer:

the answer is 20

Step-by-step explanation:

please mark brainliest

Answer:

0.78 - (1 - 0.34)

Step-by-step explanation:

i think this is correct, im so sorry if it isnt

Answer: 0.78-(1-0.34)

Step-by-step explanation:

0.78 must be on the outside of the parenthesis'

We need to find out the length of Sergei's rod, so we need to subtract it by one

1-0.34=0.66

Now do 0.78-0.66

0.12

That is how you know you are finding out the difference in length.

Answer:

1/4 / 9

Step-by-step explanation:

KCF Keep Change Flip

1/4 x 1/9

1/36

Answer:

y=4

Step-by-step explanation:

Let's solve your equation step-by-step.

5y−14=2y−2

Step 1: Subtract 2y from both sides.

5y−14−2y=2y−2−2y

3y−14=−2

Step 2: Add 14 to both sides.

3y−14+14=−2+14

3y=12

Step 3: Divide both sides by 3.

3y/3=12/3

y=4

Answer:

5y + -14 = 2y + -2

-14 + 5y = 2y + -2

-14 + 5y = -2 + 2y

-14 + 5y = -2 + 2y

-14 + 5y + -2y = -2 + 2y + -2y

5y + -2y = 3y

-14 + 3y = -2 + 2y + -2y

2y + -2y = 0

-14 + 3y = -2 + 0

-14 + 3y = -2

-14 + 14 + 3y = -2 + 14

 -14 + 14 = 0

0 + 3y = -2 + 14

3y = -2 + 14

-2 + 14 = 12

3y = 12

y = 4

Answer:

Scale factor is used to find the coordinates depending upon whether the scale factor value is less than one or more than one.

Step-by-step explanation:

A scale factor is a number which scales, or increases, some amount. In the condition y = Cx, C is the scale factor for x. C is likewise the coefficient of x, and might be known as the steady of proportionality of y to x.

An object is augmented if the scale factor is more noteworthy than 1. An article is decreased if the scale factor is a division, under 1. To discover the expanded picture, we initially should know the directions of our unique picture. At that point we basically increase the arrange by the scale factor to discover the widened picture.

Answer:  

1,159=40d+72

Answer:

(1159-72)÷40= 27 it would take her 27 days

Step-by-step explanation:

if she initially read 72 you would subtract that from the original number of pages she had to read, then divide the number that's left with how many pages she read a day after that which is 40. to get a total of 27 days to read

Answer:

Part A:

Part B: The hardware store is cheaper.

Step-by-step explanation:

Part A:

At the hardware store, the ladder is 350 plus 6% tax. To solve this you would multiply 350 by 1.06 tax. Then you would get 371. Online, the ladder is 320 plus 6% tax and 5% shipping. To solve this you would multiply 320 by 1.11 (tax and shipping combined). Then you would get 355.20.

Part B:

To solve the cost of the ladder at the hardware store, you would need to first multiply 350 by 0.9 for the 10% discount. That would get you 315. Then add the 6% tax to get 333.90. To solve for the online ladder, you would need to multiply 320 by 1.06 (6%), and get an answer of 339.20. This means that the hardware store is cheaper.

Answer

Step-by-step explanation: 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;

Cost of ladder= $320

Sales tax of shipping and handling is 5% and 6%

Off on hardware= 10%

Now,

PART A:

At the online store, the ladder costs $320, and the sales tax is 6% of $320, which is:

$320 x 0.06 = $19.20

The shipping and handling is 5% of $320, which is:

$320 x 0.05 = $16

So the total cost of buying the ladder online is:

$320 + $19.20 + $16 = $355.20

At the physical store, the ladder costs $350, and the sales tax is 6% of $350, which is:

$350 x 0.06 = $21

So the total cost of buying the ladder at the physical store is:

$350 + $21 = $371

Therefore, buying the ladder online would be cheaper, with a total cost of $355.20.

PART B:

If the hardware store is offering 10% off the price of the ladder, the cost of the ladder would be:

$350 x 0.1 = $35 off

$350 - $35 = $315

So the total cost of buying the ladder at the physical store with the discount would be:

$315 + $18.90 (6% sales tax) = $333.90

If the online store is offering free shipping and handling, the total cost of buying the ladder online would be the same as the cost of the ladder:

$320 + $19.20 (6% sales tax) = $339.20

Answer:The data is pretty evenly distributed in the age 20-39 group.

There are no outliers in either age group.

The range of the two age groups is the same.

Both data sets contain about the same amount of variation.

Step-by-step explanation: Plz make brainiest.

Answer:

Sample #1 : 16 11 9 12 11  10 10 8 15 0  2 15 14 7 11  5 14 20 3 11  14 7 0 5 21 =

0 0 2 3 5 5 7 7 8 9 10 10 11 11 11 11 12 14 14 14 15 15 16 20 21

you just need to pout them in order least to grates

Sample #2 : 21 14 0 3 6  7 10 11 7 9  14 0 15 5 12  20 0 12 11 6  0 21 14 0 6 =

0 0 0 0 0 3 5 6 6 6 7 7 9 10 11 11 12 12 14 14 14 15 20 21 21

you just need to pout them in order least to grates

Step-by-step explanation:

Answer:

10? I cant see it

Step-by-step explanation:

Answer:

the answer is the first answer, (-1, -2), (2, -2)

Step-by-step explanation:

Answer:

Discount Percent = 58.33 %

Discount Amount = $ 7.00

Step-by-step explanation:

Answer:

41.66666667%

Step-by-step explanation:

Answer:

1) S

2) M

3) I

4) E

5) A

6) L

thats what i got but i dont know y it isnt a proper word.

Answer:

1) S

2) M

3) I

4) E

5) A

6) L

Step-by-step explanation:

Answer:

yes

Step-by-step explanation:

she does have enough money to buy 3 folders because 2.99 x 3 is 8.97

Answer: The y-intercept (b) is 10.

Step-by-step explanation:

Use the slope and the point to help you. Plot the point (-3,4) on graphing paper or use geometry software. I use geometry software, it's easier.

You'll need to understand that the slope 2 can also be written as 2/1 (rise/run). Go up 2 units and go to the right 1 unit, then plot a point. Keep going until one of the points lies on the y-axis. The y-coordinate of that point is the y-intercept. So, the y-intercept (aka "b") is 10.

You're welcome, and I have a nice day! :D

Answer:

10.

Step-by-step explanation:

Answer:

$1.77

Step-by-step explanation:

10-(5.25+2.98)

=10-8.23

=1.77

Hope this helps :)

Answer:

$1.77

Step-by-step explanation:

Answer: C

Step-by-step explanation:

Answer:

FH

Step-by-step explanation:

The diameter is full lentgh of a circle.

Fh is the only line that goes completely across so thats your answer

a. it is not, because dividing 1.875 by 500 would not equal 0.015.

b. each piece of paper would equal 0.00375.

Answer:

x = 120, y = 160

Step-by-step explanation:

I like to use the elimination strategy in this type of problem.

You need to get one of the terms on the right side of the equation equal to and opposite another term on the right side of the other equation. For example, I'm going to make the y term of the first equation equal and opposite the y term of the second equation by multiplying the entire first equation by -1.5.

-1.5 * (x + y) = (280) * -1.5

2.5x + 1.5y = 540

The new equations are (only the first one changed):

-1.5x - 1.5y = -420

2.5x + 1.5y = 540

-----------------------------------

x = 120

Then plug this back into one of the equations.

(120) + y = 280

y = 160

You can check by plugging these into the other equation to make sure they are correct.

Answer:

80

Step-by-step explanation:

Volume= Length x Width x Height

8x2x5= 80

If you want to break it up into smaller pieces ....

5x2=10 or 5+5=10    

10x8= 80 or 10+10+10+10+10+10+10+10

hope this helps! :)

Answer:

b.cost of party

c=20f

Step-by-step explanation:

so we know the equation we have to use is c=20f

for part 2 we have to find out how much it's going to cost hank if 50 people attend his party;

so we know that 'c' is our unknown variable; now we write the equation filling in the 'blanks' with what we know-

c=20*50

now we multiply **remember that when you have a number and a letter right next to each other that they're being multiplied**

20*50

=1000

so hank will be spending $1000

good luck :)

hopefully, this helps

sorry i couldn't answer the last question

have a nice day !!

Answer:

The answer is- 40

Step-by-step explanation:

( :

The area of the pentagon represented here is 40 units².

Area of a two dimensional shape is the total region which is bounded by the object's shape.

Given that the coordinates of the vertices of the pentagon given are A(0, 0), B(3, 5), C(3, 8), D(8, 5), and E(8, 0).

We have to find the area.

This pentagon can be divided in to triangle CBD and trapezium ABDE.

Find the area of each to find the total area of the pentagon.

Area of ΔCBD = [tex]\frac{1}{2}[/tex] × BD × CB

Using the distance formula,

BD = [tex]\sqrt{(8-3)^2+(5-5)^2}[/tex] = 5

CB = [tex]\sqrt{(3-3)^2+(5-8)^2}[/tex] = 3

Area of ΔCBD = [tex]\frac{1}{2}[/tex] × 5 × 3 = 7.5

Area of trapezium ABDE = [tex]\frac{1}{2}[/tex] × (AE + BD) × DE

Using the distance formula,

AE = 8, BD = 5 and DE = 5

Area of trapezium ABDE = [tex]\frac{1}{2}[/tex] × (8 + 5)5 = 32.5

Total area of the pentagon = 7.5 + 32.5 = 40 units²

Hence the total area is 40 units².

Learn more about Area here :

https://brainly.com/question/22590672

#SPJ3

Answer:

If we let x be the number of ticket sold and y be the amount in dollars donated then, the equation would be,

                                     x = 2y

We can check our answer by substituting the given,

                                     10 = 2(5)

                                      10 = 10

The equation can also be written as,

                                    y = (1/2)x

Student B is correct.  

Answer:

Sample Response/Explanation: The point that represents what the local business will donate is (10, 5). After testing the point in both equations, you can see that student B wrote the correct equation; 5 = 12(10).

Step-by-step explanation: