When combining like terms how do you know to add or subtract?

Answers

Answer 1

Answer:

It’s depends on the sign.

Step-by-step explanation:

For example if your question is 3x+16y-8-7x+8y then the answer would be -4x+24y-8 if they have the same variable look at them as a separate equation.

Answer 2

Answer:

"Like Terms" means that you can add or subtract two terms. For instance, you know that you can add and get 5. You were able to add these two 'terms' ( the '2' and the '3') because they are both numbers! However, you might also know that you cannot 'combine' 2 and x. Since 2 is a number and 'x' is not, they are not like terms.

Basically if its two numbers that are the same, For example (-2x and -4x) and have with the same variables you would add them. If they are like this (5x and -2x) you would subtract them because its a negative and positive number and get ( 3x).

Hope i helped!!!!


Related Questions

The polynomial p(x)=3x^3-20x^2+37x-20p(x)=3x 3 −20x 2 +37x−20p, left parenthesis, x, right parenthesis, equals, 3, x, cubed, minus, 20, x, squared, plus, 37, x, minus, 20 has a known factor of (x-4)(x−4)left parenthesis, x, minus, 4, right parenthesis. Rewrite P(x) as a product of linear factors

Answers

Answer:

(x-4)(3x-5)(x-1)

Step-by-step explanation:

you shouldn't need much of an explantion

The polynomial P(x) = 3x^3-20x^2+37x-20 as a product of linear factors is P(x) = (3x - 5)(x - 1)(x - 4)

How to express as linear factors?

The polynomial is given as:

P(x) = 3x^3-20x^2+37x-20

The factor is given as: x - 4

This means that:

P(x)/x - 4 = 3x^3-20x^2+37x-20/x - 4

Factorize the numerator

P(x) = (3x - 5)(x - 1)(x - 4)/(x - 4)

Cancel out the common factors

P(x) = (3x - 5)(x - 1)(x - 4)

Hence, the polynomial P(x) = 3x^3-20x^2+37x-20 as a product of linear factors is P(x) = (3x - 5)(x - 1)(x - 4)

Read more about polynomials at:

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As a large truck fills its gas tank, the volume of gas, in gallons, can be modeled with the linear function v = 4.8m + 8.2, where v is the volume of gas and m is the number of minutes it has been filling. Give an interpretation for both the 4.8 and 8.2 parameters in the linear model. Use appropriate units in your explanation.

Answers

Step-by-step explanation:

Step one:

given data

we are told that the expression is

v = 4.8m + 8.2

where  v is the volume of gas and

            m is the number of minutes it has been filling.

Step two:

Required

Asumming the volume is in Liters

the interpretation of the terms in the expression for the volume

4.8 means that  for every minute 4.8L of gas enters the gas tank

hence the rate of filling is 4.8L/min

8.2 means that there is 8.2L of gas already in the tank before the filling started.

In Mr.Evans class he has 25 students. If the ratio of boys to girls is 2 boys for every 3 girls, how many girls are in the class

Answers

Answer:

15

Step-by-step explanation:

3x5=15

2x5=10

i need to waste space so yeah

How to cross multiply

2 3/4 divided by 21=

Answers

Answer:

11/84

Step-by-step explanation:

first make 2 3/4 a mixed number and multiply 11/4

by 1/21 and you get 11/84

if p(x)=-2x-4 and p(x)=6x ,find x. PLEASE ANSWER!

Answers

Answer:

x = -0.5

Step-by-step explanation:

p(x) = -2x - 4 = 6x

-4 = 8x

x = -0.5

Topic: Functions + Simultaneous equations

If you would like to venture further into mathematics, you can check out my Instagram page (learntionary) where I post notes and mathematics tips. Thanks!

Which table made this graph?

Answers

Answer:

III

Step-by-step explanation:

Number 3 did. The contains the (-1,1) and (5,-2)

Answer:

lll

Step-by-step explanation:

its the number 3 so A

Natalie bought 4 chicken wings for $7.60. How much does each wing cost? On the double number line below, fill in the given values, then use multiplication or division to find the missing value.

Answers

Given :

Natalie bought 4 chicken wings for $7.60.

To Find :

How much does each wing cost.

Solution :

Let, price of each chicken wing is x.

So,

[tex]x = \dfrac{Total price of wings}{Number of wings}\\\\x = \$\dfrac{7.60}{4}\\\\x = \$1.9[/tex]

Therefore, price per chicken wing is $1.9 .

Hence, this is the required solution.

there were 40 questions on Roberts test. How many problems did Robert get right if he received an 87.5% on his test?

Answers

Answer:

35

Step-by-step explanation:

87.5/100= 0.875*40 = 35

35

Step-by-step explanation:

x/40 = 87.5%

x = 87.5% × 40

x = 35

need help with this tank you

Answers

Answer: 321-134= 187

Step-by-step explanation:

Answer:

187

Step-by-step explanation:

Total People: 321

Total People Younger than 10 years old: 134

Take the total people and subtract all people younger than 10 years old. All you have left is people who are NOT younger than 10 years old.

321(Total People) - 134(People younger than 10 years old) = 187 people NOT younger than 10 years old.

2.(03.01 LC)
? (4 points)
What is the product of 5,811 x 102 =
5,811
581,100
581,110
581,200

Answers

592,722 is the correct answer

Answer: The answer is B

Step-by-step explanation: Its because to mulltiply power you must count how many 0 they are to get the right amout since its 2 to the power we have to look for the number that has 2 0s

Can someone help me with this fast please?
Thank You

Answers

The answer is 3/10


Explaintion

Jacob sells homemade skateboard decks for a profit of $27 per deck. He is considering switching to a new type of material that will increase his profit, as expressed by the function y = 32x, where x is the number sold and y is the amount of profit. How many more dollars will Jacob earn on each skateboard deck if he switches to the new material? Explain how you found your answer.

WILL GIVE 100 POINTS! PLS ANSWER ON THE DATE OF 11-30-20

Answers

Answer:

in your equation it says (y=32x) which 32 will mean how much he is charging for each skateboard, x will be how many he sells, and y would be how much he makes from selling them. So if he sold 2 skateboards you would do

Step-by-step explanation:

are these equivalent?
175/30 & 122.5/21

Answers

Yes they are equivalent

‼️BRAINLIEST‼️ Samiha has a babysitting buisness that she earns $8 per hour she babysits. She already has $62. She wants to earn enough money to buy a new phone for $350. Write an equation that represents how many hours she needs to babysit to earn the money to pay the phone?

Answers

Answer: 350-62= 288      288 divided by 8= 36

Step-by-step explanation:

The answer is 36 hope this helps a lot

mark me brainliest;))

Factor completely.
1^3-8x^2+16

Answers

Answer:

-8x^2+17

Step-by-step explanation:

Evaluate the exponent.

1^3-8x^2+16

1-8x^2+16

Add the numbers.

17-8x^2.

Rearrange terms (final answer).

-8x^2+17.

2.81551 nearest hundredth

Answers

2.82 is the nearest hundredth.

Hope this helps.

The answer is 2.82 because thousandths place is above 5, therefore the number before it rounds up

State the slope and the y-intercept for the graph of the equation.
y + 3x = -7
Oa. -7 -3
Ob. -3 -7
Oc. 3 7
Od. 3:1

Answers

Answer:

the slope is -3 and the y intercept is -7

(-3,-7)

-7 is the slope

Tori is sending a birthday gift to her friend out of state and wants to know how much brown paper she will need to
cover the box.
8 in
10 in.
14 in.
Which statement is true about the amount of paper Tori will need to cover the entire box?
O Covering the entire box is the surface area, which is 664 in.2.
O Covering the entire box is the surface area, which is 1,120 in.?
O Covering the entire box is the volume, which is 664 in.?.
O Covering the entire box is the volume, which is 1,120 in.?.

Answers

Answer:  Covering the entire box is the surface area, which is 664 in.2.

Step-by-step explanation: took the test on edg 2020

Answer:

guy above me is correct it is c or 664 in3

Step-by-step explanation:

just did the quiz

Graphing Absolute Value Functions & Inequalities
f (x) = |3x-4|

Answers

Answer:

absolute value makes everything positive instead of negative so since you didn't even really ask a question I'm just going to solve the problem without a point

f(x)=3x+4

f(x) = 3x - 4

f'(x) = x

x = 0

et

3x - 4 = 0

3x = 4

x = 4/3

3 * 0 - 4 = 0 - 4 = - 4

3 * 4/3 - 4 = 0

f(x) = I3x - 4I = I-4 ; 0I

Write an equation for the line parallel to the given line that contains C.
C(-3,6); y=8/9x-2

Answers

Step-by-step explanation:

y = 8x/9 - 2

therefore m = 8/9

x1 = -3

y1 = 6

from, y - y1 = m(x-x1)

y - 6 = 8/9(x+3)

y-6 = 8x/9 + 8/3

y - 8x/9 -26/3 = 0 (×9)

9y - 8x -78 = 0

a number that multiplies to 30 and adds up to 13

Answers

Answer:

3 and 10

Step-by-step explanation:

Solve the equation.

6(x−2)= −18
x=

Answers

answer: -1

explanation: you have to distribute the 6 to what’s in the parentheses first. when you do this you get 6x - 12 = -18. next, since 12 is negative, you will add it to both sides. when you do this, you get 6x = -6. lastly, you divide six on both sides. this gives you x = -1

Answer:

x = -1

Step-by-step explanation:

Distribute the 6

Then add 12 to both sides

Next divide both sides by 6

Your answer should be -1.  :)

6x-12= -18

   +12    +12

6x= -6

/6    /6

x= -1

Please help this was due an hour ago

Answers

Answer:

it is a negative linear function

the equation for it is y = -3x + 5

the slope is -3

the y-intercept is 5

Fill in the blanks. If a function is one-to-one then its inverse will be _____________. If a function is NOT one-to-one then its inverse will _______________________. *

Answers

Answer:

Inverse functions Inverse Functions If f is a one-to-one function with domain A and range B, we can de ne an inverse function f 1 (with domain B ) by the rule f 1(y) = x if and only if f(x) = y: This is a sound de nition of a function, precisely because each value of y in the domain of f 1 has exactly one x in A associated to it by the rule y = f(x).

Step-by-step explanation:

Hope it helps

The 9 planets volumes

Answers

Answer:

Rank Name Volume (cubic km)

1 Sun 1.409 x 1018

2 Jupiter 1.43128 x 1015

3 Saturn 8.2713 x 1014

4 Uranus 6.833 x 1013

5 Neptune 6.254 x 1013

6 Earth 1.08321 x 1012

7 Venus 9.2843 x 1011

8 Mars 1.6318 x 1011

9 Mercury 6.083 x 1010

10 Moon 2.1958 x 1010

11 Pluto 7.15 x 109

Source: NASA

Answer:

Volume of the Planets and the Sun. Volume of the Planets and the Sun. Rank, Name, Volume (cubic km). 1. Sun, 1.409 x 1018. 2. Jupiter, 1.43128 x 1015. 3.

Step-by-step explanation:

who came first, the chicken or the egg? and when i say came, yeah i mean that.

Answers

Answer:

i think the egg bc the egg gotta hatch to be a chicken

Step-by-step explanation:

How are these triangles congruent

Answers

Answer:

B) SAS

Step-by-step explanation:

If you reflect the second triangle then it'll look exactly like the first triangle, which would make it congruent.

Answer choice B is the answer


The table shows the relationship between cups of flour and number of eggs needed in a cake recipe.
Which equation represents the relationship shown?

answers:

y = 2/3x

y = 3/2x

y = 4x

y = 6x

Answers

Answer:

y=2/3x hope this helps!

The equation of a line from the given graph is y=2/3 x. Therefore, option A is the correct answer.

What is the equation of a line?

The general equation of a straight line is y=mx+c, where m is the gradient, and y = c is the value where the line cuts the y-axis. This number c is called the intercept on the y-axis.

From the given table, the coordinate points are (0, 0) and (6, 4)

Here, slope m=(4-0)/(6-0)

= 2/3

Substitute, m=2/3 and (x, y)=(0, 0) in y=mx+c, we get

0=2/3(0)+c

c=0

Substitute, m=2/3 and c=0 in y=mx+c, we get

y=2/3 x

Therefore, option A is the correct answer.

To learn more about the the equation of a line visit:

https://brainly.com/question/2564656.

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Which of the following is a question you ask during the REVIEW phase of problem
solving?
Does your answer make sense in the context?
O Did you answer the question?
O all of these questions
O Did you check your work?

Answers

All of these questions

please help me solve this​

Answers

Answer:

C should be the correct answer

Step-by-step explanation:

forgive me if im wrong

Answer:

a, b, c

(all but the last one)

Step-by-step explanation:

a+b+c=180 is true bcuz the sum of interior angles in a triangle is 180

rearrange a+b+c=180 into a+b=180-c

observe that 180-c equals d, so in the equation a+b=180-c replace 180-c with d.

a+b=d   so thats true

we already established that d=180-c  so thats true as well

and the last one is just not true

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