Which line shows the first error in the solution? 5(x-5)=15 (1)       5x-25=15 (2)      5x-25=15-25 (3)  5x= -10 (4)  5x/5 = -10/5 (5) x=-2 (6) Answers: A. line 2 B line 3 C. line 4 D. line 5 

Answers

Answer 1
Answer:

Answer : B. line 3

5(x-5)=15 ----> 1

We remove the parenthesis by distributing 5 inside the parenthesis.

 5x - 25 = 15 ----> 2

To get rid of -25, add 25 on both sides

5x - 25 + 25 = 15 + 25 ----> 3

5x = 40  ----> 4

Divide by 5 on both sides

x = 8  

From the given options we can see that there is a error in line 3.

Instead of adding 25 , they subtracted 25

So line 3 shows the first error.


Answer 2
Answer: 5(x-5)=15\n5x-25=15\ \ (ok)\n5x-25=15-25\ \ \ the\ first\ error\ in\ the\ solution\n \nAns.\ B\ line\ 3

Related Questions

Subtract. –56 – (–27.07)A.–83.07B.–28.93C.28.93D.83.07
On a coordinate plane how can a equation of the line be identified as proportion or nonproportional
What is 6cm in fraction form
Jose borrowed $20,000 to buy a new speed boat. The interest rate on his loan is 5%. He will pay it back in 3 years. What will be the total amount he'll pay for the boat, including interest?
The graph shows Susan’s distance from her office, in yards, as she runs errands, over time, in minutes.How much time did Susan spend moving toward her office?________ min

Roboto cuts diagonally across a square field to go home from school. What angle does his path make with the edge of the field? The answers are A: 39% B: 45% C: 60% And D: 90% plz help me

Answers

I believe the answer is 45 because squares cut in have 2/3 of the ends are 45 degree angles.

The points given in the table lie on a line.fund the slope of each line

Answers

for the first table
consider A(x1,y1)=A(0;3)  and B(x2;y2)=B(1;5)

the slope m= (y2-y1)/(x2-x1) = (5-3)/(1-0) = 2/1=2


for the second table 
consider again A(x1;y1)=A( 0;9)  and B(x2;y2)=B(2;4)

the slope m= (y2-y1)/(x2-x1)= (4-9)/(2-0)= -5/2= -2.5

Brent knows that the 6-digit number he uses to open his computer is the prime factorization of 5005.if each digit of the code increases from left to right.what is his code ?

Answers

Based on trial and error I was able to establish that 5 x 7 x 11 x 13 represent four prime numbers that when multiplied result in the requested target of 5,005.

Convert a rational number to a decimal: 4 divided by 16.24. Can anybody help me?

Answers

4/16.24
= 400/1624
= 0.2463054187

The final answer is 0.246~
0.24630541871
This is in decimal form already!

In the figure, a ‖ b and m∠1 = 34°.
What is m∠7?
__ °

Answers

If angle 1 is equal to 34 degrees, angle will be 34 too, because 1 and 3 are oppostite angles. And 3 and 5 are alternate interior angles, meaning they are alson equal so, angle 5 = 34. And finally , angle 5 and angle 7 are opposite angles so they are equal too, angle 7 = 34

Find three consecutive even integers such that the sum of the smallest to the largest 36

Answers


If they were all the same integer, then each one would be
1/3 of 36, and you would have

                                           12  +  12  +  12  =  36 .

But you don't want them to all be the same number.  You
want them to be three consecutive even numbers.

Fine !  Take 2 away from the first 12, and glue it onto the last 12 .
Their sum doesn't change, but now you have

                                             10  +  12  +  14  =  36 .
First, I would set up an equation (assuming 36 is the sum of all 3 numbers). 

x+(x+2)+(x+4)=36
               3x+6=36
                   -6   -6
                   3x=30
                   ---   ---
                   3     3
                   x=10

Now, we just plug in the numbers to find the consecutive integers
10+(10+2)+(10+4)
10+12+14

So your 3 consecutive even integers are 10,12 and 14