1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
yaroslaw [1]
3 years ago
9

Which expression would be easier to simplify if you use the associative property to change the grouping?

Mathematics
1 answer:
Alex3 years ago
3 0
The answer is D because it’s more simple
You might be interested in
Write a word phrase for p - 4
andrew11 [14]
Four less than p.
Is that correct?
8 0
2 years ago
Read 2 more answers
Calcula y comprueba las ecuaciones: plisss lo necesito alguien me puede ayudar a) 2X = 6 b) 10 + Z = 20 c) P + 9 = 11 d) 3X + 8
vesna_86 [32]

Answer:

a) x=3

b) z=10

c) P= 2

d) X=7

e) U=1

Step-by-step explanation:

Resolver una ecuación consiste en hallar los valores de la variable que hacen cierta la igualdad.

a) 2x= 6

El coeficiente es el número junto a la variable. En este caso, el coeficiente es 2. Para eliminar este número en la expresión 2x, debido a que la variable x esta multiplicada por 2, deberás dividir ambos lados de la ecuación entre 2, debido a que la operación opuesta de la multiplicación es la división.

(2x)÷2=6÷2

x= 3

Comprobar la solución de una ecuación se hace al remplazar la variable en una ecuación con el valor de la solución. La solución debería satisfacer la ecuación cuando se ingresa en esta.

En este caso:

2*3= 6

6=6

b) 10 + z= 20

En este caso se debe sumar o restar la constante que se encuentra acompañando a la variable en ambos lados de la ecuación de manera de aislar el término de la variable. En este caso:

10 - 10 + z= 20 -10

z= 10

Comprobación:

10 + z=20

10 + 10=20

20=20

c) P + 9= 11

P +9 - 9= 11 -9

P=2

Comprobación:

2 + 9= 11

11=11

d) 3X + 8 = 29

En este caso, se suma o resta la constante en ambos lados de la ecuación y luego se elimina el coeficiente de la variable mediante la división o multiplicación. Esto es:

3X + 8 - 8= 29 - 8

3X= 21

3X ÷3= 21÷3

X=7

Comprobación:

3*7 + 8=29

21+8=29

29=29

e) 2U + 8= 10

2U + 8 - 8= 10 -8

2U= 2

2U ÷2= 2÷2

U=1

Comprobación:

2*1 + 8= 10

2 + 8= 10

10=10

8 0
2 years ago
If Lisa were to plant six apple trees and only four of them were successful, she would have minus two apple trees. How many appl
Ipatiy [6.2K]

Answer:

18

Step-by-step explanation:

6 0
2 years ago
An online store sells flower arrangements for birthdays and other special events. In a review of their production costs, the
denis23 [38]

Answer: A confidence interval for the mean cost (in dollars) for one shipment of vases = (49,59)

Step-by-step explanation:

Confidence interval for mean: Mean ± Margin of error

Given: The  online store found the mean wholesale cost of one shipment of vases was ĉ = 54 dollars, with a margin of error of 5  dollars.

A confidence interval for the mean cost (in dollars) for one shipment of vases

=(54-5, 54+5)\\\\=(49,59)

Hence,  a confidence interval for the mean cost (in dollars) for one shipment of vases = (49,59)

8 0
3 years ago
Help me w/ this ty o_0
fomenos
1. We will multiply 2 * 27 = 54 and then divide by 3, 54/3 = 18
2. We can multiply across 1/2 * 2/3 = 2/6 = 1/3
3. We can multiply across 2/9 * 3/5 = 6/45 = 2/15
4. We can multiply across and get 6
5. 1 3/4 is equal to 7/4
We can multiply across 7/4 * 5/7 = 35/28
5 0
3 years ago
Read 2 more answers
Other questions:
  • Lydia uses 8.9 pints of blue paint and white paint to paint her bedroom walls. 4 5 of this amount is blue paint, and the rest is
    15·1 answer
  • Find the inverse of the function y = x^2 + 12x
    12·1 answer
  • What is the answer to this question on he picture
    10·1 answer
  • Carol gave a 15 deposit on a diamond bracelet. The deposit was $73.50. What was the cost of the bracelet?
    10·1 answer
  • Make 24 using 1,2,2,7
    13·2 answers
  • When the manager of Fantastic Furniture buys a sofa from a manufacturer, she uses a markup of 45% of her cost to set the selling
    9·1 answer
  • Given P(x) = 2x3+ 3x2- x + 4, find P(0) and P(-2).
    8·1 answer
  • PLEASE HELP THIS IS MY FIRST QUESTION!! 100 POINTS
    15·2 answers
  • On a particular day, the wind added 3 km per hour to Alfonso's rate when he was cycling with the wind and subtracted 3 km per ho
    13·1 answer
  • Which of the following is NOT a benefit of swimming?
    6·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!