Mathematics Middle School

Which expression is equivalent to:


(7d+3)-(8-5d)


A.2d-5

B.2d + 5

C.12d-11

D.12d-5

Answers

Answer 1

Answer:

D. 12d - 5

Step-by-step explanation:

eliminate parenthesis. you can just drop the first set, but distribute the negative through the second set.

7d + 3 - 8 + 5d

combine like terms

12d - 5

have a wonderful day <3

Answer 2
I think it’s D, sorry if I’m wrong ! I hope this helps !!

Related Questions

which graph represents the relationship between distance and time for car x?

Answers

Answer:

shiii i meannn

Step-by-step explanation:

Which of the four images was formed by a reflection of the letter M? (1 point)

Group of answer choices

A

B

C

D

Answers

Answer:

A

Step-by-step explanation:

A is the correct answer.

Answer: A!

Step-by-step explanation: Hope this helps ! If I am wrong I have lost my mind!! I literlly did this same problem a few weeks ago !

Figure MNOP is reflected about the x-axis to obtain figure M′N′O′P′:
What is the scale factor of dilation? (1 point)

Group of answer choices

1 over 2

1 over 3

1 over 4

1 over 5

Answers

Answer:

1/4

Step-by-step explanation:

The sides go from 4 units to 1 unit so the dilation must be 1/4

Answer:

1 over 4

Step-by-step explanation:

Step 1. The shape dilates smaller than itself so will always be less than 1

Step 2. We count P to 0 in the larger shape and see = 4 unit

and compare to P' to 0' in the smaller shape and see = 1 unit

Answer. The dilation is 1/4

Note, the letters are not MNOP so ensure you realise this.

pls help me
1/3x^2=-3

the solution to the problem is
1. x=3
2. x=±3
3. x=-3
4. no solution

Answers

Answer:

No solution because it is minus 9

No solution because x2=-9

Marnie planted 90 seeds in her garden.
1
of the seeds did not come up. How
3
many seeds came up?

Answers

90 - 13 = 77

77 seeds came up.

pls mark me as brainliest!

Find the mean (average) of the data set below.

Answers

Answer:

1.7875 in decimal form and about 1 63/80 in fraction form.

Step-by-step explanation:

so, i converted all the fractions to decimals (and you can convert them with a calculator, i'll leave the link for it for you so it can help you with converting fractions). then, i calculated by adding up the scores and dividing the total by the number of scores. it's that simple!

link for calculators:

https://www.calculator.net/fraction-calculator.html (this is a safe website)

https://www.calculator.net/mean-median-mode-range-calculator.html (same website)

1.7875. And to convert into a fraction use place value.

Given f(x)=-5x+1, solve for x when f(x)=-4.

Answers

Answer:  1

======================================================

Explanation:

We're told that f(x) = -4. That means we can replace the f(x) in the first equation and solve for x.

f(x) = -5x+1

-4 = -5x+1 ..... replaced f(x) with -4

-5x+1 = -4

-5x = -4-1

-5x = -5

x = -5/(-5)

x = 1

As a way to check, we plug in x = 1 to get...

f(x) = -5x+1

f(1) = -5(1)+1

f(1) = -5+1

f(1) = -4

So the answer is confirmed. If f(x) = -4, then x = 1.

f(x) = -5x+1

1. Substitute
f(x) = -5(-4) + 1

2. Expand and Simplify
-5 x -4 = 20
20+1 = 21

f(x)= 21 when f(x)= -4.

Lila wrote an equation of the cost for printing brochures, where x represents the number of brochures and y represents the total cost. The total cost for 35 brochures is $41.45. The total cost for 65 brochures is $55.55.

Step 1: Write the ordered pairs (35, 41.45) and (65, 55.55).

Step 2: Find the slope. m = StartFraction 55.55 minus 41.45 Over 65 minus 35 EndFraction = 0.47

Step 3: Find the y-intercept to write the equation in slope intercept form. y minus 55.55 = 0.47 (x minus 35). Y minus 55.55 = 0.47 x minus 16.45. y = 0.47 x + 39.1.

Which explains the error that Lila made?

Answers

Answer: I will let you do the math. A) x=brochures y=cost 1275+1.25x=y B) x=brochures r=revenue 2.50x=r C) n=net income 2.50x-(1275+1.25x)=n D) 2.50x=1275+1.25x

Step-by-step explanation:

1238+2029 hope this helped

What is the constant rate of this?

Answers

-1/2!
slope is rise over run and this goes down 1 and over two

Answer:

-2y=x

Step-by-step explanation:

graph shows -2y=x

20 decreased by 8 = ?

PLEASE SO WORK AND/OR EXPLAIN ON HOW YOU GOT THE ANSWER

Answers

Answer:

12............................

Answer:

12

Step-by-step explanation:

decreased mean minus

20 - 8 = 12

An art teacher has 1 1/2 -pounds of red clay and 3/4 of yellow clay. The teacher mixes the red clay and yellow clay together. Each student in the class needs 1/8 pound of the clay mixture to finish the assigned art project for the class. How many students can get enough clay to finish the project?

Answers

Answer:

I think 18.

Step-by-step explanation:

1 1/2 + 3/4= 9/4

Then 9/4 = to 18/8

So 18

(I am 95% sure.)

Please help me. Thank you.

Answers

Answer:

A

Step-by-step explanation:

I hope this helps :)

a




why do i need 20 characters

Which of the following sequences of transformations is used to obtain figure A prime B prime C prime D prime from figure ABCD? (1 point)

Group of answer choices

Reflection about the x-axis followed by a translation to the right by 5 units

Reflection about the y-axis followed by a translation down by 5 units

Counterclockwise rotation by 180 degrees about the origin followed by a translation to the right by 5 units

Counterclockwise rotation by 180 degrees about the origin followed by a translation down by 5 units

Answers

Answer:

Reflection about the y-axis followed by a translation down by 5 units

Step-by-step explanation:

Cannot be counterclockwise rotation by 180 degrees anything as it would rotate the shape upside down.

Due to being the same way up but back to front, we know it points this direction -> and needs to be directly above it to be in same transition shape in the adjoining quadrant 1 which is still y axis. then we just count to check down 5 units.

anyone i just need help with numbers 1 and 2 of this thank you

Answers

Answer:

What do you need me to do?

Step-by-step explanation:

I see a dark screen

A giraffe's height is 5 meters 40 centimeters.

How tall is the giraffe in millimeters?


a. 0.54 mm

b. 540 mm

c. 5,040 mm

d. 5,400 mm

Answers

D 5 m=5,000 mm 40cm=400mm

The height of giraffe in millimeters is 5400 millimeters. Therefore, option D is the correct answer.

What is Metric System?

Everything around us has a measurement value, from the amount of sugar you put in a cake to the size of a football field. Each thing is measured differently based on its length, weight, volume, or duration. With these measurements, the idea of "Metric System" is introduced.

Given that, a giraffe's height is 5 meters 40 centimeters.

Metric conversion refers to the conversion of the given units to desired units for any quantity to be measured.

We know that 1 meter = 1000 millimeters and 1 centimeter = 10 millimeters

Here, 5 meters = 5000 millimeters and 40 centimeters = 400 millimeters

So, the height is 5000+400

= 5400 millimeters

Therefore, option D is the correct answer.

Learn more about the Metric System here:

https://brainly.com/question/25966695.

#SPJ3

Please help me.
ILL GIVE BRAINLEST!

Answers

Answer:

I think it is A because it makes the most sense.

Sorry if I am wrong

no[tex]▪▪▪▪▪▪▪▪▪▪▪▪▪  {\huge\mathfrak{Answer}}▪▪▪▪▪▪▪▪▪▪▪▪▪▪[/tex]

The required equation is :

[tex]y = \dfrac{7}{4} x[/tex]

[tex] \large \boxed{ \mathfrak{Explanation}}[/tex]

Let's find the slope (m) first :

[tex] \mathrm{ \dfrac{y2 - y1}{x2 - x1} }[/tex]

[tex] \dfrac{7 - 0}{4 - 0} [/tex]

[tex] \dfrac{7}{4} [/tex]

And we have been given point (0 , 0) that shows y - intercept (c) is 0.

So, the required equation is :

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

[tex]y = \dfrac{7}{4} x[/tex]

Leena knits 10 rows in 12 minutes.

At this pace, how long will it take her to knit the next 25 rows?

Enter your answer in the box.

Answers

Answer:

It will take 30 minutes!

Hope this helps! :D

Step-by-step explanation:

30 minutes
Since 10 rows=12 minutes
10rows + 10rows = 20 since each 10 rows is 12 minutes it’s
12 minutes+ 12 minutes = 24
But we still have the 5 rows so that would be have of 12 minutes and that’s 6 minutes so
24 minutes plus the 6 minutes is
30 minutes

need help on slope pt 2. explain it pls

Answers

Answer:

Slope = -3/2 y-intercept = (0,1)

Step-by-step explanation:

The slope is rise/run.

We can take the points (-2,4) and (0,1) to find the slope.

In the same amount of time x increases by 2, y decreases by 3. This gives us the slope of -3/2.

The y-intercept is the y level that the slope passes through when x = 0

On this line, that is the point (0,1)

Reminder that points are (x,y)

Slope=-3/2; y-intercept (0,1)

The line crosses the y axis at the point one making that they answer for the y-intercept.

The slope is -3/2 because it went down 3, making it negative, and over two.

I know someone answered before me but there you go.

which number is not in scientific notation !! HELP FAST !! (I didn’t mean to click this answer)

Answers

Answer:

d.

Step-by-step explanation:

Answer:

Ninguno porque todos estan en notacion científica

Step-by-step explanation:

creeme

Find the distance between the points. Write
your answer in simplest form.
(1,6), (4,10)

Answers

Answer:

Distance: (3, 4)

Step-by-step explanation:

4 - 1 = 3 (x)

10 - 6 = 4 (y)

(x,y) = (3,4)

Yesssssssssssssssssssssss

a rabbit travels 3/4 miles in 7/8 of an hour. whats the rabbits unit rate?

Answers

Answer:

= 0.857143 miles per hour

Step-by-step explanation:

This the fractions 3/4 miles and 7/8 hours are equal to

0.75 miles and 0.875 hours

We want a unit rate where

1 is in the denominator,

so we divide top and bottom by 0.875

0.75 miles ÷ 0.875

0.875 hours ÷ 0.875

=

0.857143 miles

1 hour

so the answer would be...

= 0.857143 miles per hour

The answer is: 0.857143 per hour

Convert 2.01960784314 to scientific notation

Answers

Answer:2.01960784314 × 10 (little zero on top)

Step-by-step explanation:

Answer:

2.01960784314 x 10^0 = as the number is already between 1 and 10.

Fatoumata is ordering a taxi from an online taxi service. She has to pay a flat charge just to order the taxi, and then has to pay per mile, depending on how far she travels, as is represented in the linear graph below. What is the meaning of the point (1,7)?

Answers

Answer:

The first option is correct.

Step-by-step explanation:

We can see that when she travels 0 miles, she payed $4.50.

So $4.50 is the flat fee for ordering a taxi.

Point (1,7) means that after traveling 1 mile, she has to pay a total of $7.

The first option is correct.

We can also find out the amount of money per mile.

We know that the flat fee is 4.50, and the total fee for 1 mile is 7, so we can subtract 4.5 from 7

7 - 4.5 = 2.5

That means Fatoumata pays $2.5 per mile.

-Chetan K

Answer: A total charge of $7 for a 1 mile ride.

ok answer quick . . . . . . . . .. .. . . . ... . .. . . . . . . .

Answers

Answer:

$20 times 4% (.04) = .80

$.80 cents

Solve the equation:
b − 3 = 5

b = ?

Answers

Answer:

b=8

Step-by-step explanation:

Answer:

8

Step-by-step explanation:

You can reverse the equation by doing 5+3=8.

8-3=5

Please help! Due in 1 hour

Answers

If the questions are asking where the two equations meet the answer is (1,1)
It would be 1,1 if that’s what ur question means

PLS i rlly need this

Answers

Answer:

lol its 26.6

if you divide two negative numbers then its a positive

Answer:

26.5

Explanation:


when dividing or multiplying by to negatives you get a positive

need help on slope question, explain it pls if u can

Answers

Answer:

a

hjjbkjk

Step-by-step explanation:

Answer the question below thx

Answers

Answer:

Because the O-rings didnt work properly, the space shuttle exploded.

Step-by-step explanation:

Because O-rings on the Challenger didn't work correctly, the space shuttle
exploded.

Sally and Anne went to the movies. They each purchased a drink. They also bought one popcorn and one veggie cup to share. Each woman’ total is modeled with this expression:

9 + 1.34 + 1/2 (3.50 +1.74)

How would you simplify the expression? Explain your steps.

Answers

Answer:

12.96

Step-by-step explanation:

9 + 1.34 + 1/2 (3.50 +1.74)

Do the stuff in the parenthesis first   (PEMDAS)

9 + 1.34 + 1/2 (5.24)

Then do the multiplication

9 + 1.34 + 2.62

Then add all the numbers together

10.34 + 2.62

12.96

The answer is 12.96
9 + 1.34+1/2(3.50 +1.74)
Solve the parenthesis first then multiply the add all the numbers together
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