How do I justify my steps when simplifying?

Answers

Answer 1

Answer:
You justify a step the same way you decided to go through with it:
Remember a rule, axiom, postulate, theorem, or corollary you learned
that says it's a legal thing to do.

Like if you thought of erasing one of the terms in an equation because
that would make the rest of the equation easier to work with, you would
not do that, because no book or teacher ever said that it was legal.

Or if you thought of adding 42 to both sides of an equation, you could
do that, because you learned that "If equals are added to equals, then
the results are equal". Then later, if anybody ever asked you why you
could do that, or asked you to justify your step, you'd tell them the same
statement.

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A word or phrase used to show division in a word problem is?

3x and -2x are they like terms or unlike terms

Answers

Answer:

Yes they are like terms.

Step-by-step explanation:

As like terms are those who has same variables or powers.Here,we have same variables for both the terms and both have the power 1.

hope it helps!

They are like terms

What is the least common multiple of 49 and 28?

Answers

least common mulitplue is the smallest number that has 49 and 28 as factors

so to do this
find the factor so 49 and 28 and gropu all of them so both are in it

49=7 times 7
28=2 times 2 times 7
therefor yo need at least two 7's and two 2's
that equals
7 times 7 times 2 itme s2=49 times 4=196

answer is 196

Answer:

The least common multiple is 196

Step-by-step explanation:

I had this test I got this question and I got correct.

justin has a bag with 12 blue marbles 6 green marbles 8 purple marbles and 4 red marbles if she wants a probability of picking a blue marble to be 50% what should Justin do

Answers

There are many answers to this, but one answer might be to take away 6 of the other colors. This is because if 12 marbles are to equal 50%, we need the other side to have the same amount of marbles as the blue. And since the other color marbles add up to 18 and not 12, we need to take away six of the other colored marbles to make it 12.
I hope I helped, and if you need more information, please feel free to tell me! :D

Which choice explains the correct way to move the decimal point to find the quotient in the problem 265.786 ÷ 10?A.
2 places to the left

B.
1 place to the left

C.
2 places to the right

D.
1 place to the right

Answers

B.1 place to left (26.5786)

B. Place to the left.

Why is the pizza box square the pizza circle and the slices triangles

Answers

The pizza box is a square because it needs to fit the circular pizza. The slices aren't technically triangles, since they have one curved edge. They do look like triangles, though!

The pizza box is square because the pizza needs to fit into the box and the pieces of pizza are not actually triangle because of the edge

Sam walked to a nearby shop to purchase a gallon of ice cream. The shop is 400 meters from his house, and it took him 4 minutes to get there. At the shop, it took 2 minutes to choose a flavor and purchase the ice cream. He walked home in 3 minutes, at a faster pace than before so the ice cream wouldn’t melt. Draw a graph that models Sam’s distance from home (in meters) in terms of time (in minutes). Label the graph with appropriate intervals and units.

Answers

Answer:

see the attached graph

Step-by-step explanation:

The axes and units for the graph are given in the problem statement. The range of the graph is also given, but figuring the domain requires a little arithmetic. We assume the walking pace is constant, so the graph will be piecewise linear.

Axes

The vertical (y) axis is labeled with what the graph is modeling, "distance from home (in meters)." The horizontal (x) axis is labeled with what the model is in terms of "time (in minutes)."

The range of the graph is 0 to 400 meters, the range of distances Sam may be from home.

The domain of the graph is 0 to 9 minutes. The time it takes to complete the trip is 4 minutes to the shop, 2 minutes at the shop, and 3 minutes coming home, for a total of 4+2+3 = 9 minutes.

Graph

We are given that points on the graph will be (0, 0), (4, 400), (6, 400), and (9, 0). That is Sam is ...

at home at 0 minutes
400 meters from home (at the shop) after 4 minutes
remaining 400 meters from home for 2 more minutes (until 6 minutes)
at home after 3 more minutes (at 9 minutes).

Since we assume walking is at a steady pace, we connect these dots with straight lines. The resulting graph is attached.

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