MATHEMATICS MIDDLE SCHOOL

Tina solved an equation incorrectly, as shown below:Step 1: 8x = 24
Step 2: x = 24 − 8
Step 3: x = 16

Which statement best explains why Step 2 is incorrect in Tina's solution?

She did not divide 24 by 8.
She did not add 8 to 24.
She did not multiply 24 by 8.
She did not multiply 24 eight times.

Answers

Answer 1

Answer:

Answer: The correct statement is (A) She did not divide 24 by 8.

Step-by-step explanation: Given that Tina solved an equation incorrectly, as shown below:

Step 1: 8x = 24

Step 2: x = 24 − 8

Step 3: x = 16.

We are to select the correct statement that best explains the reason behind Step 2 incorrect.

The correct steps of the solution are

$\textup{Step 1: }8x=24\n\n\textup{Step 2: }x=(24)/(8)\n\n\textup{Step 1: }x=3.$

Therefore, we see that in step 2, Tina should divide 24 by 8, which she did not do and got the incorrect answer.

Thus, the correct statement is (A). She did not divide 24 by 8.

Answer 2

Answer: $8x = 24 \n \n x = (24)/(8) \ / \ divide \ by \ 8 \n \n x = 3 \ / \ simplify \n \n$

Seeing the correct steps above, the mistake that Tina made was that she did not divide 24 by 8.

Related Questions

Why is m step so hard??
What is 32 divided by 5.98
A Lights-A-Lot quality inspector examines a sample of 30 strings of lights and finds that 8 are defective.a. What is the experimental probability that a string of lights is defective?b. What is the best prediction of the number of defective strings of lights in a delivery of 400 strings of lights?
Find the volume ! Help ASAP
Four times a number increased by 3 is the same as twice the number increased by 9? I'm horrible at these

PLEASE HELP! FINDING THE PERIMETER (only 2&3)

Answers

#2. P=2W+2L -> 2(4)+2(2) -> 8+4=12 so P=12 #3. P=2W+2L -> 2(9)+2(4) -> 18+8=26 so P=26

What is the definition of an integer

Answers

a whole number; a number that is not a fraction.

An integer is a whole number not a fraction though..its like it completes itself

Which of the following equations models the relationship of angle A to the length of the line segment BC in the figure below.

Answers

Let the line segment BD be x, then sin A = x/15
or, x = 15sinA
Also $y^(2) = x^(2) + (25)^(2) \n = (15sinA)^(2) + 625 \n =225 sin^(2) A+625 \n y= \sqrt{225 sin^(2) A+625}$
The last option

Name the Property:
-2 + (10 + 1) = (-2 + 10) + 1

Answers

Those addends are in the same order on the left and right, only the parentheses have changed. That's the

Associative Law of Addition

Factor and Solve 23x+100=-2x

Answers

1. Combine like terms
2. Get x by itself (divide -25 on both sides)
3. Answer: x= -4

Answer:

x=-4

Step-by-step explanation:

23x+2x=-100

25x=-100

x=-4

A spinner has five sections, labeled A, B, C, D, and E. The spinner is spun 60 times, and the results are recorded in the table.What is the experimental probability of the spinner’s landing on E? Round to the nearest percent, if necessary.

Outcome___________A________B________C________D________E
Number of trials_____15________10_______18_______11________6

A.

10%

B.

14%

C.

18%

D.

20%.