Mathematics Middle School

subtract.
a. (21x)-(-16+7x)
b. (-13n)-(17-5n)
c.(4y-7)-(y-7)
d.(-w+0.4)-(-w-0.4)

Answers

Answer 1
a. (21x)-(-16+7x)
21x+16-7x
14x+7
b
(-13n)-(17-5n)
-13n-17+5n
-8n-17

c
(4y-7)-(y-7)
4y-7-y+7
3y

d
(-w+0.4)-(-w-0.4)
-w+0.4+w+0.4
0.8

Related Questions

Stefan sells Jin a bicycle for ​$115 and a helmet for ​$17. The total cost for Jin is ​110% of what Stefan spent originally to buy the bike and helmet. How much did Stefan spend​ originally? How much money did he make by selling the bicycle and helmet to​ Jin? IF BOTH PARTS OF QUESTION ARE ANSWERED CORRECTLY I WILL GIVE BRAINLIEST

Answers

Answer:

120 and 12

Step-by-step explanation:

115+17= 132

132/110= 1.2

1.2 · 100= 120

132-120= 12

120 n 12............

The grocery store clerk put only packages of flour tortillas and packages of corn tortillas on the shelf. The ratio of the number of packages of flour tortillas to the total number of packages on the shelf was 9 to 21.

Which number could be the number of packages of corn tortillas the clerk put on the shelf?

A 30
B 36
C 40
D 42

Answers

Answer:

A is my answer

Step-by-step explanation:

because if you have to a 21+1 it equals 30

Answer:

A

Step-by-step explanation:

21+9=30

If you could help that would be fantastic! Thank you!

Answers

Answer:

A

B

A

Step-by-step explanation:

hope this helps :•D

Miss gourl idek good luck tho

A ride-share driver completed 6 trips and was paid a flat fee of $90, not including any tips. At this rate, how many trips must he complete to be paid a total of $225?

Answers

Answer:

15

Step-by-step explanation:

Answer:

15

Step-by-step explanation:

Because 90x2.5=225 so then you do 6x2.5 and that is 15.

what is the reciprocal of 20 as a fraction?

Answers

Answer:

1/20

Step-by-step explanation:

5th Grade Math HW Help (Please help, due 12/14!) I'll pick the best answer for extra points.

Answers

Answer:

(1-4)      

1. 160÷(16+4)=8

2. (4+6)*8÷2=40

3. 3=120÷(64-24)

4. 135=(42+3)*3

(5.a.)1. column A

      2. column B

      3. column A

      4. column A

      5. column A

      6. column B

(5.b) i don't know :(

(6.a)  72

(6.b)  I followed the  Base * Width * Hight method. I used the expression 3*4*6=72

<3

I can help with 5.b since the other person gave the other answers. Yes you have to simplify and evaluate the expressions.
Ex.) 2 • (12+4) = 2 • (16) = 32

-7 2/3 + -5 1/2+ 8 3/4 PLZZZZZ HELP ME!!!!!!!!!!!!!!

Answers

Answer:

-4.416 repeating

Step-by-step explanation:

Answer:

-53/12 or 4 5/12 either works

Step-by-step explanation:

Let's turn the mixed fractions into improper fractions.

-7 2/3 = -23/3

-5 1/2 = -11/2

8 3/4 = 35/4

Now we need to find Least Common Denominator.

12 is the LCD because

3*4 = 12 is for -23/3

2*6 = 12 is for -11/2

4*3 = 12 is for 35/4

Now you will multiply the improper fractions by the 2nd number.

[tex]-\frac{23}{3}*(\frac{4}{4}) = -\frac{92}{12} \\\\-\frac{11}{2}*(\frac{6}{6}) = -\frac{66}{12} \\\\\frac{35}{4}*(\frac{3}{3}) = \frac{105}{12}[/tex]

Now that they have the same denominators just put the numerators in the equation.

-92 + -66 + 105 = -53

-53/12 or -4 5/12

Hope this helps ya!

What is -3 (2m - N)?

Answers

Distribute -3 to 2m and -n

-6m - 3n

Answer:

−6m+3N

hope this helps

Step-by-step explanation:

Unit 2 Lesson 2 PS 1 table


What is the constant of proportionality?

Explain or show your reasoning.

Answers

Answer:

k

Step-by-step explanation:

The constant of proportionality is the ratio between two directly proportional quantities. ... Once you know the constant of proportionality you can find an equation representing the directly proportional relationship between x and y, namely y=kx, with your specific k.

Y=kx I’m not sure please tell me if I’m right

Please help I will give Brainliest: What is the distance between
(-7.4, 2.4) and (2.7, 2.4)?

Answers

The distiance between them is 10.1

Answer:

10.1 I believe .

Step-by-step explanation:

If u do 2.4-2.4 and 2.7 -7.4 the slope equals 10.1 so the slope is the distance

PLEASE HELP ASAP. I BELIVE ITS YES

Answers

Answer:

yes because the corresponding angles do not have a sum of 180

Step-by-step explanation:

Answer:

yes because the corresponding angles do not have a sum of 180

Step-by-step explanation:

2) help ASAP due in like 10min

Answers

Answer:

y=25x-5

Step-by-step explanation:

25x is the money you start with and 5 is a constant that you lose per game hence the negative/or subtraction sign

Branliest plsssss

help please i give brainliest

Answers

Answer:

X+296=285

X=-11

Original= 11 feet below sea level

HURRY HURRY HELP MEeeeee

Answers

Answer:

dividing by 100

Step-by-step explanation:

Shoppers buy a 12 lb turkey for $15. They want to make a 35% profit on the sale/price of the turkey? how much is it then?

Answers

Answer:

$5.25

Step-by-step explanation:

35% of $15 is $5.25

5.25 since 15$ is 35% of 15$

Wendy needs to purchase 34 vases, which cost $3 each, and flowers for the vases, which cost $2 each. She has $442 to spend on her vases and flowers.

Which of the following inequalities would show the maximum number of flowers, x, Wendy can buy without spending more than $442?

Answer choices:
A. x + $34 $442
D. $2x + $102 > $442

Answers

It would be D. A wouldn’t fit the question
D would be the only answer, it includes the comparison of saying the amount must be less that $442 and anonymous number of flowers with a variable

Pls help me 17 points!!!

Answers

Answer:

i dont know

Step-by-step explanation:

i really need these pionts im sorry wish you luck

A graph is shown with x-axis title as Time in seconds. The title on the y-axis is Height of Elevator Above Ground in feet. The values on the x-axis are from 0 to 5 in increments of 1 for each grid line. The values on the y-axis are from 0 to 75 in increments of 15 for each grid line. A line is shown passing through the ordered pairs 1, 15 and 2, 30 and 3, 45 and 4, 60. The title of the graph is Rate of Ascent.
What is the rate of change for the relationship represented in the graph? (1 point)

Group of answer choices

14

15

fraction 1 over 15

fraction 1 over 14

Answers

Answer:

Step-by-step explanation:

The answer is 25 i think bc when yu do the steps yu will find out so i think the answer is 25 or 50 either one i am positive... if a i am wrong then my apologies i am just in 7th grade.

Someone Help me PLS ...

Answers

Answer: Number 1 would be F

Number 2 would be C

Number 3 is D

Number 4 is B

Number 5 is A

Number 6 is E

Step-by-step explanation:

Select the function that represents a geometric sequence

Answers

Answer:

c

Step-by-step explanation:

1. You have two playing cards with a sum of (−12) in your hand.
a. What two cards could you have?
b. You add two more cards to your hand, but the total sum of the cards remains the same, (−12). Give two different examples of two cards you could choose.

Answers

Yes the person is right I was trying to type it but they beat me to it

Pls Help! Thank you a lot!

Answers

Answer:

D.

If im wrong im sorry

0.18 divided in 3 = 0.06 , its infinite so its D..

it's a little blurry sorry please help

Answers

Answer:

It's X=2

Working out:

(left one):

2(x+3)=10

2x+6=10

2x=10-6

2x=4

x=2

Working out:

(right one):

2(x+3) must be all divided by 2 so it will be x+3 and same for 10, it will be 5 so...

x+3=5

x=5-3

x=2

Hope it helps ^---^

Answer: it’s x=2



Working out:

2(x+3)=10

2x+6=10

2x=10-6

2x=4

X=2

First One To Solve Correctly Gets Brainlyest

Answers

Answer:

11.3

Step-by-step explanation:

4.5x2.5

11.25

11.3

use pythagorean theorem: a^2 + b^2 = c^2

4.5^2 - 2.5^2 = x^2

x = 3.74

please help me I'm desperate!!!!!

Answers

C. Is the answer .yw
C is the answer to the question

What is the product of 142 and 26?
A 168
B 192
C 3,692
D 8,520

Answers

The answer is c

Explanation- product =multiplication. 142 x26 = 3,692 when multiplied

Answer:

well the answer is 3692

Step-by-step explanation:

DOOOO NOTTT SKIPPPPPPP

Answers

1st one RS=DE,
second one T=F,
last one R=D

Answer:

Step-by-step explanation:

An equation and the first step in its solution are shown.

Equation: x2 + 3x – 9 = 0

Step 1: x2 + 3x + h = 9 + h



What value of h is used to solve the equation by the method of completing the square?

Answers

Answer:

The answer is either 1.5 or 0.667

Step-by-step explanation:

x2+3x-9=0

x2+3x=9

6x=9

x=1.5

or

x=667

the value of 'h' used to solve the equation by completing the square method is [tex]\frac{9}{4}[/tex]

Given :

An equation and the first step in its solution are shown.

Equation: [tex]x^2 + 3x -9 = 0[/tex]

Step 1: [tex]x^2 + 3x + h = 9 + h[/tex]

In completing the square method , we take the coefficient of x  and divide it by 2  and then square it

coefficient of x is 3

divide it by 2 , so we get [tex]\frac{3}{2}[/tex]

Then we square it [tex](\frac{3}{2} )^2\\\frac{9}{4}[/tex]

Then we add it on both sides of the equation

[tex]x^2 + 3x + \frac{9}{4} = 9 + \frac{9}{4}[/tex]

So, the value of 'h' used to solve the equation by completing the square method is [tex]\frac{9}{4}[/tex]

Learn more : brainly.com/question/10662834

Chad has a rope that is 10 yards long. How many pieces of rope measuring of a yard can he divide his rope into?

Answers

10 because he has ten yards so he can divide them evenly into ten yards

Answer:

1

Step-by-step explanation:

10 divided by 10

Please answer this and tell me how you got it!!

Answers

Answer:

Step-by-step explanation:

multiply 2nd equation by 3 to get 6m+18n=0 then just use the elimination method

:) please comment for more explaning

The answer is Red so (-2,3)
N=-2
M=3
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