Justify each step
-12p+45-7p

Answers

Answer 1

Answer:

Given, Associative, Commutative, Associative, Addition

Step-by-step explanation:

-12p + 45 -7p           Given

-12p + (45 - 7p)        Associative

-12p + (-7p + 45)      Commutative

(-12p + -7p) + 45     Associative

-19p + 45                Addition


Related Questions

It takes 5 minutes for 7 people to drink 25 pints of water.At this rate,how long would it take 15 people to drink 160 pints of water

Answers

Answer:

14.9 min

Step-by-step explanation:

r=rate

r25=5*7

r25=35

r=35/25

r=1.4

substitution

r160=t*15

t=time

r=1.4

1.4*160=t*15

224=t*15/15

224/15=t

14.9 min

30 POINTS IF U ANSWER!
Alonso paid for repairs on his car, and 3
5
of the bill was for labor costs. How much was the total bill if the cost of the labor was $79.50? Let b = the amount of the total bill.

Which equation and solution is correct?
Five-thirds b = 79.50, and the total bill was $47.70.
Three-fifths (79.50) = b, and the total bill was $127.20.
Five-thirds b = 79.50, and the total bill was $212.00.
Three-fifths (b) = 79.50, and the total bill was $132.50.

Answers

Answer:

132.50

Step-by-step explanation:

3/5b = 79.50

b = (79.50) / (3/5)

b = 79.50 * 5/3

b = 397.50/3

b = 132.50

132.50 is the total bill

Solve for n.

n + 1 = 4(n – 8)
i will give a brainliest

Answers

n + 1 = 4(n - 8)

n + 1 = 4n - 32

n - 4n = -32 - 1

-3n = -33 / : (-3)

n = 11


Someone help :(( thank youuuu so much if u do

Answers

Answer:

-10

Step-by-step explanation:

The equation would be -8 - (-10) = 2. When subtracting a negative, you are actually just adding a positive. It's like the two negative signs cancel each other out, so it would look more like -8 + 10 = 2. For the answer box, just put -10.

Scooter rental company A charges an initial fee of $3 plus $1.15 for every hour. Scooter rental company B charges $1.75 for every hour. A customer finds that after h hours, the scooter rental companies will cost the same.

Which equation represents this situation?


​1.75h+1.15h=3​

​1.75h=3−1.15h​

​1.15h=3+1.75h​

​1.15h+3=1.75h

Answers

Answer:

This is a little late but it's D. ​1.15h+3=1.75h

Step-by-step explanation:

I took this test

I also need to put why

Answers

Answer:

i think it is 90

Step-by-step explanation:

.Write 1.2 - 10-5 in standard form​

Answers

1.2 .10/2=120.0( standard form)

because the exponent of the 10s term is positive we must move the decimal point 2 places to the right.



Can you mark this Brainliest? Thanks love!!

PLZZZ HELP X IS 44 .............

Answers

Answer:

y = 136

Step-by-step explanation:

the line is 180 degrees so

180-44 = 136 degrees

Answer:

y=136

Step-by-step explanation:

x=44 y=136

44+136=180

somebody please just answer.......................

Answers

Answer:180 is what it need to be

Step-by-step explanation:

Put the following equation of a one into a slope -intercept form, simplifying all fractions.

8x+6y=-54

Answers

Answer:

y = -4/3x -9

Step-by-step explanation:

Slope intercept form is

y = mx+b where m is the slope and b is the y intercept

8x+6y = -54

Subtract 8x from each side

8x+6y-8x = -8x-54

6y = -8x-54

Divide each side by 6

6y/6 = -8x/6 -54/6

y = -4/3x -9

Answer:

y = -4/3x - 9

Step-by-step explanation:

Putting this into 'y=mx+c' form:

i) Firstly, make it only y on the LHS:

6y = -8x-54

ii) Secondly, making the 'y' have a co-efficient of 1. This can be done by dividing both sides by 6:

6y/6 = -8x/6 - 54/6

y = -4/3x - 9

Hence,

y = -4/3x - 9

Hope this helps and be sure to have a wonderful time ahead at Brainly! :D

pls help im really bad at math no links pls​

Answers

Answer:

[tex]-\frac{1}{2}[/tex]

Step-by-step explanation:

[tex]-\frac{5}{6} +\frac{6}{18}[/tex]

[tex]-\frac{5}{6} +\frac{2}{6}[/tex]        reduced

[tex]\frac{-5+2}{6}[/tex]            transformed the expression to make it easier

[tex]-\frac{3}{6}[/tex]               add

[tex]-\frac{1}{2}[/tex]               reduce

PLEASE HELP WILL MAKE BRAINLIEST!
The expression ____ means 15 minus the product of 5 times the difference of p minus 6. If p = 8, then the value of the expression is 5.FILL IN THE BLANK
A.15 - 5p - 6
B.15 x 5 - (p - 6)
C.(15 - 5) x (p - 6)
D.15 - 5(p - 6)

Answers

Answer:

hope you like my answer its letter B

How are rates and ratios related?

Answers

Answer:

Rates are ratios that are renamed so that one of the numbers is 1. It is usually the denominator of the original ratio.

I need help with find this problem out

Answers

Ok so first, we know just by looking that QT is 180° since it’s a fraught angle. If you subtract angle QRS from QT, you’ll get the value for angle SRT. 180-162 is 18 so SRT IS 18°. The other angle of the triangle is already given to us as 130°. Since all three angles of a triangle add up to 180°, we can subtract the two angles to get the remaining one. 180-130-18 is 32 so the missing angle is 32°
Hope this helped :)

Answer:

Step-by-step explanation:

Hi there!

∠SRQ = 162°

∠STR = 130°

∠RST = ?

Now;

∠SRQ = ∠RST+∠STR   [external angle is equal to the sum of opposite interior angles of triangle]

∠RST = ∠SRQ-∠STR

∠RST = 162°-130°

Therefore, the measure of ∠RST is 32°.

Hope it helps!

Identify the type of function represented by f(x)= (4).
A. Quadratic
B. Exponential growth
C. Linear
D. Exponential decay

Answers

This is an exponential growth function.

If we look at the number that is raised to the power of x, it is greater than 1. Though there is a fraction within this equation, it is not affected by the exponential.

Hope this helps!! :)

Answer: A

Step-by-step explanation:

Alicia had 418tons of fertilizer spread evenly across 216acres of land. How many tons of fertilizer are on each acre?

Answers

Answer:i know hwere you live

Step-by-step explanation:

you are in 7th grade aaand live in houston texas

Each letter of L I T T R E L L is written on a card. The cards are placed in a basket. Find each probability if Elsa selects a card, leaves it out, and then selects another card.

7. Is this an independent or dependent event? Explain: ______________________________ _____________________________________ _____________________________________

8. What is the probability of selecting a T and then an E?

9. What is the probability of selecting a T, and then another T?

10. P(E, then I)?

Answers

Step-by-step explanation:

7. I believe it's independent because it makes sense and if it was dependent it wouldn't make senses.

8.For T you have 2 (Ts) so that give you a 2/8= 25% so you would basically make those Ts disappear and focus on 1 out of 6 and you'd get a 16.67% chance

9. 14.2857%

10. I don't understand ;-; am I suppose to multiply or see the chance if % it would get

I'm sorry;-;

what does 2 - 2 equal

Answers

Answer:

2 -2 = 0

hope this helps <3

Is the table a linear function?
Yes or no

Answers

yes it is a linear function


For each pair of shapes, decide whether or not Shape A is congruent to Shape B. Englan your meaning
First pair

Answers

Answer:

blah blah blah blah blah

If m∠ P = (19x -5) ∘ and Angle P is a right angle, find the value of x;

Answers

Answer:

the value of x= 5

Step-by-step explanation:

hey there!

given;

P=90°( right angle)

now;

∠p=19x-5

90°+5°=19x

95/19=x

x=5

hope it helps!

! ! ! Angles ! ! !
(worth ten points)
~
Which of these statements are true?
A.) ΔA is similar to ΔB.
B.) ΔB is similar to ΔC.
C.) ΔA is similar to ΔC.
D.) All three triangles are similar.

Answers

Answer:

A.)

Step-by-step explanation:

a & b are the closest to each other.

1)the fish vendor sells 5/7 kilos of bangus for 75.50. if you will buy 2 1/7 kilos of bangus,how much will cost?​

Answers

Answer: 好吧,您看到当您将其乘以 73 然后除以 时,您将获得免费的旁遮普语和免费的,乔·佩珀将在凌晨 3 点拜访您

Step-by-step explanation: 详见附件

What is the slope of this line?
a. -1/3

b. 1/3

c. 2/3

d. -2/3

Answers

Answer:

c. 2/3

Step-by-step explanation:

Since the line is going up to the right it is a positive slope. Therefore it can't be a or d.

The slope is 2/3 because to connect the dots you have to go up 2 and to the right 3.

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how to use union in the real world?​

Answers

Answer:

To overcome such type of real world problems we use union. Unlike structures union occupies single memory location to store all its members. So, unions are helpful when you want to store value in single member from a set of members. Size of union is defined according to size of largest member data type.

Step-by-step explanation:

In union, all members share the same memory location. For example in the following C program, both x and y share the same location. If we change x, we can see the changes being reflected in y. #include <stdio.h> // Declaration of union is same as structures.

5x+4=5x+4 is it one solution, no solution, or infinite solutions?

Answers

Answer: infinite solutions

Simplifying
5x + 4 = 5x + 4

Reorder the terms:
4 + 5x = 5x + 4

Reorder the terms:
4 + 5x = 4 + 5x

Add '-4' to each side of the equation.
4 + -4 + 5x = 4 + -4 + 5x

Combine like terms: 4 + -4 = 0
0 + 5x = 4 + -4 + 5x
5x = 4 + -4 + 5x

Combine like terms: 4 + -4 = 0
5x = 0 + 5x
5x = 5x

Add '-5x' to each side of the equation.
5x + -5x = 5x + -5x

Combine like terms: 5x + -5x = 0
0 = 5x + -5x

Combine like terms: 5x + -5x = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

Infinite solutions

Try to solve this equation:

5x+4=5x+4

Move all the variables to the left:

5x-5x+4=4

Do you see what I see?

4=4

We end up with a true statement. 4 does indeed equal 4. Hope this helps!

~Just a joyful teen

[tex]-GraceRosalia[/tex]

Can you use mechanical pencils on the PSAT?

Answers

Answer:

no

Step-by-step explanation:

only number 2 pencils im pretty sure

PLEASE ANSWER THIS FAST!!!!!!!!!

If you paint all the walls in a room, how many square feet do you need to cover.
The east wall is 3 yds long
The South wall is 10 ft long but has a window that is a 5x3
The west wall is 3 yds long but has a door, 7x3
The north wall has a closet 6.5 ft wide and a small was that is 0.5 feet wide and extends 2 feet into the room.

PLEASE HELP

Answers

Answer:

Step-by-step explanation:

1. 300 square feet

Un laboratorio desea saber la efectividad de un nuevo medicamento para el control de la diabetes. Al realizar un experimento en 10000 individuos encuentra que en el 90 % de ellos el medicamento resulta ser efectivo. Suponiendo que los 10000 individuos son representativos de la muestra, conteste las siguientes preguntas:
a) ¿Cuál es la población?
b) ¿Cuál es la muestra?
c) Identifique el parámetro de interés
d) Identifique la estadística e indique cuál es su valor e) ¿Se conoce el valor del parámetro?

PORFAVOR LA EXPLICACION AL RESPONDER LAS PREGUNTAS

Answers

Queremos encontrar diferentes cosas en un experimento dado. Daremos una breve explicación para cada respuesta.

a) La población es el grupo de gente que se estudia, en este caso la medicina es para diabeticos, por lo que la población en este caso sería toda la gente que padece dicha enfermedad.

b) La muestra se refiere a la parte de la población que participa en el experimento, en este caso son 10,000 personas con diabetes.

c) El parametro de interes, es decir, lo que le interesa estudiar a los cientificos, será la efectividad del medicamento que estan desarrollando.

d) Sí, se conoce el valor del parametro, se sabe que en 90% de los casos es efectivo, escribiendo esto de forma decimal, podemos decir que el medicamento es efectivo con una probabilidad de 0.9.

Sí quieres aprender más, puedes leer:

https://brainly.com/question/21705405

Which fraction equals a repeating decimal 3/10 6/12 1/3 3/4

Answers

Answer:

1/3

Step-by-step explanation:

because 1/3 is 0.333333

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