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
blondinia [14]
3 years ago
7

EXPLAIN A LOT OF POINTS!!!

Mathematics
1 answer:
IrinaVladis [17]3 years ago
3 0

Answer:

x−(−16)=−28+12

x−(−16)=−28+12

x+16=−28+12

x+16=(−28+12)

x+16=−16

x+16=−16

x+16−16=−16−16

x=−32

You might be interested in
F(x) =-2x^2-4x-18 find f (-6)
Alexxandr [17]

Answer:

ncdjndndd

Step-by-step explanation:

jdsjkdsjdsjkjkds

7 0
3 years ago
Aisha had a of ribbon. She used 15% of the ribbon to decorate cards and had 17 feet of ribbon left. She then used 20% of the rem
Tcecarenko [31]

Answer:

The total amount of ribbon she had was 35 feet of ribbon.

Step-by-step explanation:

I hope this is one of the answers and I hope this helps you.  Stay safe:)

3 0
2 years ago
Read 2 more answers
HELPPPPPPPPPPPPPPPPPPPPPP
Harrizon [31]
The answer is the first one
4 0
2 years ago
Read 2 more answers
The average of p, q, and r is 40. The average of a, b, c, and d is 5. What is the average of a, b, c, d, p, q, and r?
Pachacha [2.7K]

Answer:

20

Step-by-step explanation:

Average = sum of numbers divided by number of numbers

sum of p q and r: 40*3=120

sum of a b c and d: 5*4=20

sum of a b c d p q r: 120+20=140

average of a b c d p q r: 140/7, or 20

3 0
3 years ago
-8(6-r)=24 what is the solution for r
Andreas93 [3]

Answer:hi

Step-by-step explanation:Let me first warn you that I CANNOT get the denominators of this problem to go underneath the numerators. It looks good on my answer page but when I click "preview your answer" the denominators are ALL over the place. Grrrrr.

I think the weirdly placed denominators make this explanation hard to understand but you give this a go and see if you understand things. If it is too hard to see, maybe this website will let you instant message me or email me. If so, then I will send you the solution via email. I'm very sorry the denominators are SO scattered.

See what you think of the explanations below but it might help if you write down my answer on paper, so that you can move the number to rest more closely under their proper numerators. :-)

Ok then......

Let's start with your first problem. A quick way to do this work is to cross multiply. Here's what I mean:

__3___ = __6___

r - 1 r + 2

Ok, so you can cross multiply:

3(r + 2) = 6(r - 1) (cross multiply)

3r + 6 = 6r - 6 (use the distributive property)

Now you will have to put the "r" variables on the left side of the equal sign and numbers without variables on the right side of the equal sign. To get 6r from the right side to the left, you can subtract 6r from the right side. If you subtract it from the right, you must subtract it from the left.....

To get 6 from the left side to the right, you can subtract it from the left. If you subtract it from the left, you must subtract it on the right.....

So now you have:

3r - 6r = -6 - 6 This becomes.........

- 3r = -12

Now to solve for "r" you will have to divide by -3. Why? Well, -3r is really saying: -3 times r. The -3 and the r are actually being multiplied together so to isolate the "r" you have to sort of "undo" the multiplication. What is the opposite of multiplication? It's DIVISION. Soooo, you must divide by -3 on both sides. SO you have:

- 3r = -12

r = 4 (-12 divided by -3 is a positive 4)

Now you know "r" equals 4. If we "plug" 4 back into the original equation, we can see the answer is correct. Check this out:

__3___ = __6___ (original equation)

r - 1 r + 2

__3___ = __6___ (substitute "4" in for "r"

4 - 1 4 + 2

__3___ = __6___ (do the math in the denominator area)

 

3 6

1 = 1 (3/3 equals 1 and 6/6 also equals 1, so our

solution that r = 4 is correct!) :-)

Now to your 2nd problem..........

4/2x-5 = 24/2x

___4___ = __24___

2x � 5 2x

Let's cross multiply again:

4(2x) = 24(2x - 5)

8x = 48x - 120

8x - 48x = - 120

-40x = - 120

(divide both sides by -40)

x = 3

Now let's "plug" 3 in where we had the variable "x" in the original equation to see if we are correct.

___4___ = __24___ (original equation)

2x � 5 2x

___4___ = __24___ (substituted 3 for "x")

2(3) � 5 2(3)

___4___ = __24___

6 - 5 6

___4___ = __24___

1 6

4 = 4

SO once again we have found the correct answer. Yay for us! :-)

I hope this helps. :-)

8 0
3 years ago
Read 2 more answers
Other questions:
  • What is the solution for 3b + 17 less than or equal to 4b + 23 + 2b
    10·1 answer
  • Need help with this geometry poblem
    8·1 answer
  • Evaluate the expression : common log of square root 9/25.
    5·1 answer
  • Nicole has $9 to spend on cards she finds friends with the same amount of money to split the cost of a set one set cost $27 each
    6·1 answer
  • A zoo has some new exhibits.
    14·1 answer
  • The Baker Sends all his Bread in One Store. If he can pack up to 15 Loaves of Bread in a Box for Shipping, What is the Minimum n
    5·1 answer
  • Find the annual interest rate.
    10·1 answer
  • Help please and no links!!!!
    15·1 answer
  • WILL MARK BRAINLIEST, JUST HELP ME PLS
    9·1 answer
  • How do I answer this question pls help me
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!