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
Crank
3 years ago
9

Explain how does knowing 1 + 7 helps you find the sum for 7 +1

Mathematics
2 answers:
AURORKA [14]3 years ago
5 0

Explanation: For this, we take two different numbers.

Let the first number be x and the second number be y

We use the commutative property, which says that the sum will remain same in whatever way the numbers are written.

Mathematically,

x+y=y+x

From the question,

x = 1

y = 7

Putting this in the commutative property equation, we get:

1+7=7+1

Hence, the sum of both the umber will be same.

astra-53 [7]3 years ago
3 0
Well 1+7 =8
And 7+1 are the same digits so 1+7=7+1=8
You might be interested in
Sandra bought 30 T-shirts at the clothing store. 20% of the T-shirts were blue and half of the T-shirts were black. How many of
insens350 [35]
So you have 20% of blue and 50% of black.
So you have 70% in total that are both blue and black.
100%- 70%= 30%
So that means 30% were neither blue or black.
Do a proportion
30/100= x/30
30 x 30= 900
900 divided by 100= 9
Answer is 9 shirts are neither blue or black
8 0
3 years ago
How do you break apart 3 x 5
Burka [1]
You have to separate 3 five times so like 3+3+3+3+3=15
6 0
3 years ago
Write a story that could represent this math problem.
jeyben [28]

Answer:

Macey has 4 friends and only 4 chocolate bars. She wants to give 3 slices to each friend. Each bar is 8 slices. How many slices does she have left after she gives three slices each to her friends?

4 0
2 years ago
Read 2 more answers
CAN SOMEONE JUST PLEASE ANSWER THIS ASAP FOR BRAINLIEST!!!
Rom4ik [11]
A=lw
42xy^3=(14xy)l
isolate l
divide both sides by 14xy to isolate l
(42xy^3)/ (14xy)=14xy / 14xy *l
the 14xy in the right cancel out
now you have:
42xy^3/14xy=l
42/14= 3, now just do division of powers for xy
x-x =0x, y^3-y= y^2
therefore the answer is 3y^2
6 0
3 years ago
What multiple of 7 is also a factor of 7
enyata [817]
<span>The answer is 7. Seven is a prime number, which means that its multiples are 1 and itself (7): 7 = 1 * 7. To find out which one is a factor of 7, we should divide each of them by 7. 1/7 will be a decimal number and 7/7 = 1, which is a whole number. Thus, 7 will be a multiple of 7 and also a factor of 7.Hope this helps. Let me know if you need additional help!</span>
7 0
3 years ago
Other questions:
  • Solve. X^2+20x+100=50
    11·1 answer
  • What coordinate do lines 2/3x+1/6y=2/3 and 4x+y=4 meet?
    14·1 answer
  • Which of the following polynomials has solutions that are not real numbers?
    14·2 answers
  • You are a carpet installer and need to lay carpet for a room that measures 11 feet by 18 feet. How much carpet do you need to co
    15·2 answers
  • 7.4 multiply by what is equal to = 24
    11·1 answer
  • Which function in vertex form is equivalent to f(x) = 4 + x2 – 2x?
    14·2 answers
  • HELP PLS AHHH JSBDNSJDNSN
    9·2 answers
  • I need help with this question
    12·1 answer
  • What is the sum of 10/12and 11/12? Make sure to show all work to receive full credit!
    11·1 answer
  • NEED ASAP!!<br><br><br> Find the surface area of the pyramid.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!