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harina [27]
4 years ago
7

Help please and part 1 and two ​

Mathematics
1 answer:
natali 33 [55]4 years ago
4 0

1. She made mistake in line c.

2. She added 12 on one side of the equation and subtracted 12 on other side when she was supposed to add 12 on both sides of the equation

Step-by-step explanation:

We will solve the given equation step by step to find her Mistake

8x-3(2x+4)=10

a. Distribution property

8x-6x-12=10

b. Simplifying

2x-12=10

c. Adding 12 on both sides

2x-12+12=10+12

d. Dividing both sides by 2

\frac{2x}{2}=\frac{22}{2}\\x=11

By comparing her solution and our solution we can see that she made mistake in line c

So,

1. She made mistake in line c.

2. She added 12 on one side of the equation and subtracted 12 on other side when she was supposed to add 12 on both sides of the equation

Keywords: Linear Equation, Error

Learn more about linear equation at:

  • brainly.com/question/3614284
  • brainly.com/question/3783529

#LearnwithBrainly

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Convert 0.50 sen /g to RM/kg ​
IgorC [24]

the conversion is:

0.50 sen /g = 5 RM/kg

<h3>How to change the units?</h3>

First, we know that

1sen = 0.01RM

Then we can change:

0.50 sen /g = 0.50*(0.01 RM) /g = 0.005 RM/g

Now we use the relation:

1g = 0.001kg

So we can rewrite:

0.005 RM/g = 0.005 RM/(0.001kg) = 5 RM/kg

So the conversion is:

0.50 sen /g = 5 RM/kg

If you want to learn more about changes of units:

brainly.com/question/9032119

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7 0
2 years ago
Zahir completes 1/5 of his homework in 5/15 of an hour. How much time will
kogti [31]

Answer:

t = 100 minutes, or 1 hr, 40 minutes

Step-by-step explanation:

5/15 of 1 hour is the same as 5/15 of 60 minutes, which is 20 minutes

you can set up a proportion of hw completed / minutes = hw completed / min:

(1/5 ÷ 20) = (1 ÷ t)    we use '1' to indicate all homework (or 100% of hw) and 't' to indicate time required

cross-multiply to get:

20 = 5/t

t = 100 minutes, or 1 hr, 40 minutes

6 0
3 years ago
What is 14 x 72 equal
irina1246 [14]

Answer:

1008

Step-by-step explanation:

When you multiply, always start on the first value. In this case, this would be 2 from 72.

2 * 4

==> 8[tex]and[tex]2 * 1

2

Write now, you should have 82 as your first value.

Now for your second value, which would be 7. But first you need to add a zero, because you are doing the tens place.

7 * 4

==> 28

<u>Now you put the two over your next equation:</u>

and

7 * 1

==> 7

+1

==> 9

Now you should have 980 written.

<u>Now add your two numbers together:</u>

<u></u>

82 + 980

==> 1008

3 0
3 years ago
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miss Akunina [59]

Answer: They will need 3 total buses to fit all of the teachers and students.

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3 years ago
If the endpoints of have the coordinates A(9, 8) and B(-1, -2), what is the midpoint of?
VashaNatasha [74]

The answer is c that the correct answer

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