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
777dan777 [17]
3 years ago
12

Look at the way that Samuel answered the question above.

Mathematics
1 answer:
Solnce55 [7]3 years ago
5 0

A) Multiplication is done wrong. The + sign with 16 underlined in the term -16m<em><u>+16</u></em>=-16 is wrong. it should be -16.

B) After solving -2(8m+8)=-16 correctly we get m=0

Step-by-step explanation:

A) Explain his mistake in complete sentences.

Samuel has done the mistake while performing the step:

-2(8m+8)=-16

When we multiply -2 with the terms inside the bracket, we apply the rule that if we have one positive sign (+) and one negative sign (-) while multiplying the result would have negative sign(-) i.e,

-16m-16=-16

While Samuel has calculated as -16m+16=-16

The + sign with 16 underlined in the term -16m<em><u>+16</u></em>=-16 is wrong. it should be -16.

B) Explain how to solve the equation correctly

Now, solving the given expression:

-2(8m+8)=-16\\Multiplying\,\,-2\,\,with\,\,terms\,\,inside\,\,the\,\,bracket.\\-16m-16=-16\\Adding\,\,+16\,\, on\,\, both\,\, sides\\-16m-16+16=-16+16\\-16m=0\\Divide\,\,both\,\,sides\,\,by\,\,-16\\m=0

So, the value of m is m=0

Keywords: Solving Algebraic expressions

Learn more about Solving Algebraic expressions at:

  • brainly.com/question/1563227
  • brainly.com/question/2403985
  • brainly.com/question/2615542
  • brainly.com/question/7014769

#learnwithBrainly

You might be interested in
What is y + 20 &lt; 180? please help me
taurus [48]

Answer:

y < 160

Step-by-step explanation:

y + 20 < 180

    -20 < -20

y < 160

y is less than 160

5 0
2 years ago
Read 2 more answers
25 POINTS!! (EASY)MORE POINTS!!!!!!! BRAINLIEST PLSSSSSSSSSSSSSSSSSSSHELP. For Brainliest Please help)
Lostsunrise [7]

Answer:

A) 50

B) 20

C) 20

Step-by-step explanation:

To solve the first question, we can multiply both sides by 10.

Thus, we get:

6x = 300.

Then, divide by 6, to get x:

x = 50.

You can do the same thing to all of these questions.

I've already checked the answers, but if you don't trust them, just pluck the values in.

For example, let's check the answer for question A.

0.6*50 is supposed to equal 30.

Does it equal? Yes, so we know that the answer is correct.

3 0
3 years ago
I need help with b and c please and thank you!!
Vlada [557]

Answer:

rjdjdj shiejd shsuisis shusisos

3 0
2 years ago
What is the area of the squares with sides (2x-3)feet?​
LUCKY_DIMON [66]

Answer:

4x^2 -12x +9   ft^2

Step-by-step explanation:

The area of a square is

A = s^2 where s is the side length

A = (2x-3) ^2

A = (2x-3) (2x-3)

FOIL

first 2x*2x =4x^2

outer 2x (-3) = -6x

inner -3*2x = -6x

last -3*-3 = 9

Add them together

4x^2 -6x-6x +9

Combine like terms

4x^2 -12x +9

The area is 4x^2 -12x +9 ft^2

5 0
3 years ago
Read 2 more answers
Colin buys a tv for £530. It depreciates at a rate of 3% per year. How much will it be worth in 5 years? Give your answer to the
rodikova [14]

Answer: In 5 years it will be worth £455

Step-by-step explanation:

Step 1

Given

The cost of the T.V. for Colin = £530.

The rate of depreciation per year = 3%

Time/ period = 5 years

Formulae to be used

F = P  X (1 - r) ^ n

where

F = the future value after depreciation

P = the present value.

r =the interest rate per time period

n = the time/ periods

Step 2--- SOLVING

F = P  X (1- r) ^ n

F= 530 x (1-0.03) ^ 5

=530 x 0.858734

=£455.129

Rounding up to the nearest penny where appropriate = £455

3 0
3 years ago
Other questions:
  • Which statement shows the associative property of addition?
    5·1 answer
  • Ji and Layla played a game in which they scored 10 points for a correct answer and lost 20 points for an incorrect answer. Ji an
    10·1 answer
  • Let the probability of success on a Bernoulli trial be 0.30. a. In five Bernoulli trials, what is the probability that there wil
    15·1 answer
  • 50 POINTS, ANSWER ASAP!!
    6·2 answers
  • If 2y-3=7-3y<br> then y= ?
    14·2 answers
  • Simplify (xy)^-3/(x^-5y)^3
    10·1 answer
  • The combination for opening a safe is a four-digit number made up of different digits. How many different combinations can you m
    11·2 answers
  • Simplify 6(2+4x)+3(x2-5x)<br>how do i do this?
    7·1 answer
  • A grab-bag contains 30 packages worth $.65 each, 10 packages $.60 cents each, and 15 packages worth $.30 each. What is the expec
    15·1 answer
  • Let x=2. Evaluate the expression. x+4/3x enter your answer in the box
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!