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
Vsevolod [243]
3 years ago
8

Jackson gave Lena this expression to evaluate: 14(8 + 12). Lena said that to evaluate the expression was simples

Mathematics
2 answers:
Veseljchak [2.6K]3 years ago
8 0

Answer:

Step-by-step explanation:

Lena's method by prime

= 14 = 7 x 2 = 2/7        Factors  or simply just 14 x 20 =280

= 20 = 10 x 2 = 2/10    Factors

= 2 x 2 =4                    Cross multiply

= 7 x 10 = 70

Jackson's method by algebra and by adding to the product of 14 and 12

14(8+12)

112+ 160

= 280

Jackson was right in this discussion, as the process within-algebraic shows clarity of the two multiples; being 154 x 8 and 14 x 12, without this we cannot check for mistakes, and we cannot learn from correct answers as often.

krok68 [10]3 years ago
3 0

Answer:

see explanation

Step-by-step explanation:

a) lena's method:

  • 14(8+12)
  • 14(20)=280

jackson's method:

  • 14(8+12)
  • 112+12
  • 124

b) lena is right because when evaluating expressions, you have to follow PEMDAS. parentheses come before multiplication.

:)

You might be interested in
This is very easy. will give brainliest!!
Naddika [18.5K]

Answer:

7. 158

8. 90 degrees

9. right angle

10. acute

Step-by-step explanation:

lm.ao if it's easy then do it lol jk here's the answers:) hope this helps

7 0
3 years ago
What is the value of the missing number in the sequence<br><br> 4,12,36,__,324,972,2916
stiv31 [10]
108 
4 times 3 =12
12 times 3 =36 
36 times 3 =108
etc

4 0
3 years ago
Wich fraction is equivalent to 2/8
mars1129 [50]
What are the choices?
3 0
3 years ago
Read 2 more answers
The fair will be traveling to a place that uses the metric system. They received directions to their next stop, but they are in
MariettaO [177]

Answer:

2x - 0.4x ;

8x/5 ;

Yes

Step-by-step explanation:

Let number of miles = x

Arlene:

Double number of miles = 2 * x = 2x

Subtract 20% of the result :

2x - 20% of 2x ;

2x - 0.4x

Raul:

Divides Number of miles by 5 ; x / 5

Multiplies result by 8 ;

8 * (x/5) = 8x /5

To know if expressions are equivalent :

Let x = 10 miles

Using Arlene's expression:

2x - 0.4x

x = 10

2(10) - 0.4(10) = 16

Using Raul's expression :

8x / 5

(8*10) / 5

80/5

= 16

Since they give the same result, we can conclude that the expression are equivalent

5 0
3 years ago
Find the perimeter of the polygon on this picture. I don’t know how to do this. Plz help
ANEK [815]
The perimeter of the polygon will be given by:
Perimeter=distance around the figure
Thus the perimeter will be:
P=9.9+(9.9-5.9)+5.9+15.9+(15.9-4.6)+4.6
P=9.9+4+5.9+15.9+11.3+4.6
P=51.6 
Answer: 51.6 units
7 0
3 years ago
Other questions:
  • In ΔPQR, the measure of ∠R=90°, the measure of ∠Q=22°, and PQ = 9.2 feet. Find the length of RP to the nearest tenth of a foot.
    14·1 answer
  • A high school football team has 60 players. 42 of the players are seniors. what percentage of the team's players are seniors?
    12·2 answers
  • On graph paper, graph the two lines associated with the equation in this system of equation
    12·1 answer
  • A chef has 1/2 a pound of flour to divide equally into two containers. How much flour will be in each container?
    15·1 answer
  • 10. Kayori has saved $400 to buy new clothes. She will spend $40 a week on new clothing items.
    9·1 answer
  • On Friday, a bowling alley made $842.72 from lane rentals and $412.38 from the concession stand. On Saturday, their lane rentals
    15·2 answers
  • If anyone can help me I will really appreciate!!
    11·1 answer
  • Harrison reads 15 minutes per day for a project. The total number of minutes Harrison reads for the project is proportional to t
    7·2 answers
  • Given a sphere with a radius of 2 cm find its volume to the nearest whole number.
    13·1 answer
  • Which of the following is the graph of f(x) = cos(x+<br> +32
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!