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
lana66690 [7]
2 years ago
14

What is 9 plus 10???​

Mathematics
1 answer:
Anon25 [30]2 years ago
8 0

Answer:

21

Here’s legitimate proof that 9+10=21

(9 + 10) (base x) = 21 (base y)

9(1) + [1(x) + 0(1)] = 2(y) + 1

Simplify and solve for y:

2y = 8 + x

y = 4 + x/2

Since we have number bases, we want x and y to be positive integers. The term x/2 requires that x be a positive even number.

Also since 9 is in base x, we have x ≥ 10, as the digit 9 would not be used for a base 9 or smaller.

Thus we have the pairs of solutions:

x = 10, so y = 9

x = 12, so y = 10

x = 14, so y = 12

…

x, y = 4 + x/2 … Therefore 9+10=21!

You might be interested in
If a ray lays in a plane, how many points of the ray are also in the plane?
Over [174]
The answer is a all of the points
6 0
3 years ago
Read 2 more answers
What is the value of the expression 10 (n minus 6) when n = 14?
Scrat [10]

Answer:

The value of the expression is 80.

Step-by-step explanation:

14 - 6 = 8.

10 x 8 = 80.

6 0
3 years ago
Read 2 more answers
What is the equation of the midline for the function f(x)?<br><br><br> f(x)=12sin(x)+6
Lostsunrise [7]
Ever tmb hbebh = hxyobwv
4 0
3 years ago
Domain<br> 6<br>range<br>8,7,-5,6<br> is this a function or not​
Fiesta28 [93]

Answer: That is a function!

Step-by-step explanation:

8 0
3 years ago
What is the slope of the line through the given points:
telo118 [61]

Answer: slope is 1

equation: 1x-2 or x-2

I hope this is good enough:

3 0
3 years ago
Read 2 more answers
Other questions:
  • How many years will it take for a person in the United States eat 1,120 pounds of turkey (14 pounds)
    13·1 answer
  • The line that contains the point Q( 1, -2) and is parallel to the line whose equation is
    5·1 answer
  • Someone please help me. Serious answers only.
    10·2 answers
  • Find b for the following right angled triange where a=5 and c=13
    12·1 answer
  • Find the surface area of the pyramid
    13·1 answer
  • Solve for n, 4 x n = 7 x 16
    7·2 answers
  • What number is not a factor of 24
    10·1 answer
  • At Joe's Pizzeria, small pizzas cost $7.50, and large pizzas cost
    7·1 answer
  • Two of the statements are true; one is a lie.
    15·1 answer
  • I HAVE ONE WEEK OF SCHOOL CAN SOMEONE HELP?!
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!