MATHEMATICS MIDDLE SCHOOL

What is the answer to the equation -84+15r=3r

Answers

Answer 1
Answer:

Answer:

r=7

Step-by-step explanation:

-84+15r=3r

Subtract 15r from each side

-84+15r-15r=3r-15r

-84 = -12r

Divide each side by -12

-84/-12 = -12r/-12

7 = r
Answer 2
Answer:

Answer:

r = 7

Step-by-step explanation:

So the reason that the answer is 7 is because in this equation you have to get all the r's on one side and the other numbers on the other side of the equal sign.

-84 + 15r = 3r

-84 = -12r

you then divide both sides of the equal sign by -12 in order to get rid of the -12 next to the r variable and when you divide the negative 84 by a negative 12 you will get a positive 7 giving you the answer r = 7

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Deepak wrote out the steps to his solution of the equation StartFraction 5 Over 2 minus 3 x minus 5 plus 4 x equals negative StartFraction 7 Over 4 EndFraction – 3x – 5 + 4x = –. A table titled Deepak's Solution with 3 columns and 5 rows. The first row is, blank, Steps, Resulting equation. The second row has the entries, 1, Use the distributive property to simplify. StartFraction 5 Over 2 minus 5 plus 4 x minus 3 x equals negative StartFraction 7 Over 4 EndFraction. The third row has the entries, 2, Simplify by combining like terms, negative StartFraction 5 Over 2 plus x equals negative StartFraction 7 Over 4 EndFraction. The fourth row has the entries, 3, Use the addition property of equality, negative StartFraction 5 Over 2 EndFraction plus StartFraction 5 Over 2 EndFraction plus x equals negative StartFraction 7 Over 4 EndFraction plus StartFraction 10 Over 4 EndFraction. The fifty row has the entries, 4, Simplify by combining like terms, x equals StartFraction 3 Over 4 EndFraction. Which step has an incorrect instruction? Step 1 Step 2 Step 3 Step 4

Answers

Answer:

Step 1 instruction is incorrect.

Step-by-step explanation:

The given equation is (5)/(2)-3x-5+4x=-(7)/(4)

In step 1, Deepak rearranged the terms in order to simplify like terms together that is followed in step 2.

So, rearranging of the terms of an expression is commutative property and not distributive property.

Distributive property is generally applicable to multiplication and is given as:

a(b+c) = ab+ ac

Commutative property is given as:

a+b = b+ a.

Therefore, adding terms by changing their order is commutative property of addition and not distributive property.Step 1 instruction is wrong.

Answer: The answer is A

Step-by-step explanation: Because I took the test

The paper around a snow cone has a slant height of 6 inches and a diameter of 3 inches. About how many square inches of paper are needed to make a snow-cone cup

Answers

make a what you didnt finish the question

As you sit in your seat in the science classroom, the Earth pulls down upon yourbody with a gravitational force; the reaction force is the chair pushing upwards onyour body with an equal magnitude. True False

Answers

Wrong subject this is Physics 

True, because of equal action-reaction, the earth pulls on you, but you pull on the earth.

Final answer:

The statement is correct. It illustrates Newton's Third Law of Motion which states that for every action, there is an equal and opposite reaction. Therefore, the gravitational force pulling down on your body is equal to the force of the chair pushing upward.

Explanation:

The statement in your question is True. According to Newton's Third Law of Motion, for every action, there is an equal and opposite reaction. Therefore, as you sit in your science classroom, Earth does pull down on your body with a gravitational force. Simultaneously, the reaction force is the chair pushing upwards on your body. Both forces are equal in magnitude, but opposite in direction.

Learn more about Newton's Third Law here:

brainly.com/question/2057822

#SPJ11

A baseball player won 80% of the games he pitched. if he pitched 35 ballgames, how many games did he win?

Answers

80% of 35 is what?
1. Multiply the opposites80 x 35 = 2800
2. Divide by the remaining number.
100√2800 =28
28 games.

√= i used this to make division bar thing
Multiply 35 by 80 and divide by 100 and get an answer of 28.

I need help ASAP please this is killing me

Answers

Ok, so from what I see, they are related proportionally. One side of a square is related proportionally because in order to find the length, it's 2L(length)+2W(width). So without a side(such as width or length), you couldn't find the parameter.
For the area, a side is related proportionally because you need to multiply Length x Width(l x w). 

OK SO HERES THE PROBLEM. MY BRAIN HURTS. PLZZZ help me with this math problem

Answers


Oh Foxy, Foxy, how totally debilitated you must be !  Try to relax.  Nobody
enjoys a painful brain, and believe me, this problem is not worth it.

Let me put it to you this way:  What if the problem said . . .

-- Demarcus has $8 more than his sister.
-- His sister has $4.
-- How much money ' M ' does Demarcus have ?

If your brain didn't hurt, you could quickly solve this right in there.
You would know that Demarcus' money ' M ' = 8 + 4 .

That's almost exactly what the problem does say. 
Except it doesn't say he has "$8 more than his sister",
it says he has "at least" that much.
So you know that ' M ' is not exactly = 8 + 4, but that's the least it could be.
The actual amount of ' M ' is more than that.

Surely you can handle it from here, even with half of your brain
tied behind your back.

Take a good hard look at ' A ', and then go lie down.
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