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
iris [78.8K]
3 years ago
14

when you solve a problem by working backward, what does your answer represent? how can you check your answer?

Mathematics
1 answer:
Rus_ich [418]3 years ago
8 0
Lets say you have an addition problem

3 + 7 = ?

To figure that you can just add in your head since its easy.

3 + 7 = 10

You can work backwords to check to see if your awnser is right.

When you work backwards you do the opposite of what you are doing, so if your adding the opposite would be subtracting, and if your multiplying than the opposite would be dividing.

So you could work it out like this:

(Regular⬇️)
3 + 7 = 10
(Backwards⬇️)
10 - 7 = 3

And if you get the same numbers that were in the original awnser than you are correct! Hope this helps!!!!
You might be interested in
A construction worker can lift 220 lb, while an architect can only lift 40 lb. The construction worker can lift how many times w
natka813 [3]
The answer is B because 40 goes into 220 5.5 times...
3 0
3 years ago
Read 2 more answers
Please help!!!!!!!!!!​
rusak2 [61]
Convert into percent
406/100 = 406%
7 0
3 years ago
Read 2 more answers
X2-7x-18÷x2+8x+12 what is it in lowest terms
Eddi Din [679]

\dfrac{x^2-7x-18}{x^2+8x+12}=\dfrac{x^2+2x-9x-18}{x^2+6x+2x+12}=\dfrac{x(x+2)-9(x+2)}{x(x+6)+2(x+6)}\\\\=\dfrac{(x+2)(x-9)}{(x+6)(x+2)}=\dfrac{x-9}{x+6}

5 0
3 years ago
HELPPPPPP ASAPPPPP!!!!!
diamong [38]

Answer:

C) $65.00

hope that helps!

6 0
2 years ago
Read 2 more answers
I need help SHOW YOUR WORK
earnstyle [38]

Answer:

F)\displaystyle \:  100\pi{ x}^{8} {y}^{2}  {z}^{ 6}

Step-by-step explanation:

we are given r and the formula

we want to find the surface area of the shpare with the given r

to do so

we need our algebra skills

substitute the value of r:

\displaystyle \: S = 4\pi( {5x}^{4} y {z}^{ 3} {)}^{2}

recall law of exponent

\displaystyle \:  ({x}^{m}  {)}^{n}  \iff \:  {x}^{mn}

to simplify:

\displaystyle \: S = 4\pi({ {5}^{2} x}^{4 \times 2} {y}^{1 \times 2}  {z}^{ 3 \times 2} )

simplify multiplication:

\displaystyle \: S = 4\pi({ 25x}^{8} {y}^{2}  {z}^{ 6} )

distribute:

\displaystyle \: S = 100\pi{ x}^{8} {y}^{2}  {z}^{ 6}

hence our answer is F

5 0
2 years ago
Other questions:
  • An amount of 18,000 was invested a 8% simple interest on may 25 , 2017 , how much shall be the amount of interest earned on Octo
    6·1 answer
  • Find the factors of 582.
    13·1 answer
  • Which set of numbers would be included in the shaded portion of the Venn diagram
    10·1 answer
  • 1. Jacob opens an online-only savings account and deposits $50 each month. The annual interest rate is
    6·1 answer
  • Write a two-column proof
    6·1 answer
  • What is the slope of the line that contains the points (4, -1) and (-1, 4)?
    6·1 answer
  • Which of the following represents “ten times the sum of a number and fourteen is equal to nine times the number”
    7·2 answers
  • How many 38s does it take to make 32.
    7·2 answers
  • Solve for x: 3x - 5 = -2x + 40
    13·1 answer
  • "Taylor's Toys" produced 600 remote control cars in two colors. For blue cars they produced 60 more than 3 times as many orange
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!