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
Dimas [21]
3 years ago
14

Paulo used the expression 7×(4+4) to solve 7×8. Does his method make sense? Explain​

Mathematics
2 answers:
Ymorist [56]3 years ago
5 0

Answer:

Yes, because 4 + 4 = 8 so it is the same as 7 × 8.

Leno4ka [110]3 years ago
4 0

Answer:

Yes.

Step-by-step explanation:

This is because if using PEMDAS, you will see that (4+4) = 8.

That would mean that 7x(4+4) =7x8, and that Paulo is correct.

You might be interested in
Which ordered pair (c,d) is the solution to the given system of linear equations?
IceJOKER [234]

Answer:

(-1, 6)

Step-by-step explanation:

{-c + 2d = 13

{-9c - 4d = -15

-⅑[-9c - 4d = -15]

{-c + 2d = 13

{c + 4⁄9d = 1⅔ >> New equation

______________

2 4⁄9d = 14⅔

______ _____

2 4⁄9 2 4⁄9

d = 6 [Plug this back into both equations to get the c-value of -1]; -1 = c

I am joyous to assist you anytime.

7 0
3 years ago
Read 2 more answers
If 8x−5y=−3 is a true equation, what would be the value of 8x−5y+7?
Vesna [10]

Answer:

Value of 8x -5y + 7 is 4.

Step-by-step explanation:

Given that:

8x-5y = -3     Eqn 1

It is a true equation.

Now we have to find the value of the given expression

8x -5y + 7

Putting value of 8x-5y from Eqn 1 in the given expression

8x - 5y + 7

-3 + 7

4

Therefore,

8x - 5y + 7 = 4

Hence,

Value of 8x -5y + 7 is 4.

7 0
3 years ago
Consider the Inequality <br> —2n +7 &gt; -11<br> What is the solution of the inequality
Marta_Voda [28]

Answer:

  • n < 9 or n = (-oo, 9)

Step-by-step explanation:

  • -2n +7 > -11
  • -2n > -11 - 7
  • -2n > -18
  • n < -18/-2
  • n < 9
  • n = (-oo, 9)
5 0
3 years ago
What is the radius of the circle given the equation x2 - 6x + y2 + 10y - 2 = 0?
Bezzdna [24]
4x+12y=2
2=4x+12y
2x+6y
8 0
3 years ago
- help help help help help help help help help help
aleksandr82 [10.1K]

Answer:

b = -8

Step-by-step explanation:

6b = -42

Divide by 6 on both sides

b = -8

8 0
3 years ago
Read 2 more answers
Other questions:
  • Find the opposite reciprocal in quesrions 13-15<br><br>13) 2<br><br>14) -3/4<br><br>15) 1/3
    9·1 answer
  • What is the value of x in y=3x-5 and 6x+3y=15
    7·1 answer
  • 3.7 radians into degrees ans round off your answer to the nearest degree.
    10·1 answer
  • A test has twenty questions worth 100 points. The test consists of multiple choice questions worth 3 points each and extended re
    15·1 answer
  • Darrion weights 50 pounds less than his brother. Together they weigh 330 pounds. How much does Darrion weigh?
    10·2 answers
  • The table and the graph below each show a different relationship between the same two variables, x and y.
    9·2 answers
  • How many tiles of 20cm by 20cm are needed for a dinning room measuring 20m?
    5·1 answer
  • (2x + 7y) (4x – 8y)
    5·1 answer
  • You paint four walls. Each wall is a rectangle with a length of 18 feet and a height of 12 feet. One gallon of paint covers abou
    10·1 answer
  • Rewrite the following expression using the properties of loy
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!