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
zysi [14]
3 years ago
9

The equation - 21 = -15 is solved in several steps below. 2 For each step, choose the reason that best justifies it.

Mathematics
1 answer:
tatyana61 [14]3 years ago
7 0

Answer:

3.  Simplifying

4 multiplication property of equality.

5. simplifying

Step-by-step explanation:

y/2 -21+21 = -15+21  

To get to the next step  we add -21+21 on the left and -15+21 on the right

We are simplifying on each side

Then we multiply by 2 on each side for the next step

We use the multiplication property of equality.

Finally we simplify in the last step

You might be interested in
Find the value of x in the isosceles trapezoid if AC = 2x + 2 and DB = 4x - 6
Artemon [7]
look ar the photo, x is 4

7 0
3 years ago
Hello everyone if you could help me that would be awesome
Viktor [21]

I don’t think I can help you sorry
4 0
3 years ago
Read 2 more answers
Jaymie wants to construct congruent angles with a compass and straightedge, while Annie wants to construct congruent segments wi
SashulF [63]

Jaymie will measure the segment and then place the point just across from the line's beginning point to create a congruent segment that shows the similarity between them.

<h3>What are the conditions of the congruent triangle?</h3>

Triangles that are equivalent in terms of size and form are known as a congruent triangle.

Segments will be built using the straightedge, and measurements will be taken using the compass. They will pick a starting point and draw a line using the straightedge, then use the compass to finish the job.

To make the congruent segment, Jaymie will measure the segment and then position the point that is opposite from the line's starting point.

Jaymie, on the other hand, will have to work a bit harder with the compass since she will need to draw a semi-circle in the original angle and transfer this measurement to the new line in order to create congruent angles.

To learn more about the congruent triangle refer;

brainly.com/question/12413243

#SPJ1

6 0
3 years ago
Jason will use a 1/3 gallon pitcher to fill an empty 3/4 water jug. How much water is needed to completely fill the water jug?
elena-s [515]

Answer:

Pitcher 1/3 gallon = 4/12 gallon

Jug 3/4 = 9/12 gallon

So, it will take 2 pitchers plus 1/12 of a gallon to fill the jug.





Step-by-step explanation:


6 0
3 years ago
A chemist would like to dilute a 90-cc solution that is 5% acid to one that is 3% acid. How much water must be added to accompli
Verizon [17]

Answer:

The amount of water must be added to this task = 60 cm^{3}

Step-by-step explanation:

Let amount of water added = x cm^{3}

Then from the given conditions

A chemist would like to dilute a 90-cc solution that is 5% acid to one that is 3% acid. So

90 (0.05) = 0.03 ( 90 + x )

4.5 = 2.7 + 0.03 x

0.03 x = 1.8

x = 60 cm^{3}

Therefore the amount of water must be added to this task = 60 cm^{3}

8 0
3 years ago
Other questions:
  • Determine which of the following numbers could not be​ probabilities, and​ why? Select all that apply. A. The number 110​% could
    9·1 answer
  • How long will it take a couch traveling 90km/he to travel 300 km along a highway​
    6·1 answer
  • HELP I NEED HELP ASAP
    14·1 answer
  • How much does michael jordan make a month
    7·1 answer
  • Thomas is training for a 3.1-mile race by running on a circular path. He knows that it is 0.75 miles from the tree in the center
    11·2 answers
  • Please help me<br> Find product
    7·2 answers
  • If tan 0 =8/15 what is sin 0
    6·1 answer
  • (x-8)x(-7x-17) - simplify
    13·1 answer
  • Solve this for me please.
    14·1 answer
  • Write the inequality graphed on the number line.<br><br> -3 3
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!