All categories

2 years ago

a number of two digits exceed by 9 the number form by reversing the digit. If the sum of the digits is 13.find the numbers

2 answers:

8 0

Let the 2 digit number be 10a + b, where a and b are the tens digit and the ones digit.

Given that

a + b = 13 (equation 1) and

10a + b —9 = 10b + a (equation 2)

So 9a = 9b + 9 , which means

a = b + 1 (equation 3)

Substitute (3) into (1)

(b + 1) + b = 13

2b = 12

b = 6 (equation 4)

Substitute (4) into (3)

a = 6 + 1 = 7 (equation 5)

The 2 digit number is 76.
736 viewsView 1 Upvoter
Related Questions (More Answers Below)

storchak [24]2 years ago

6 0

Answer:

This isn’t Spanish, it’s math. Explanation:

You might be interested in

Nosotros<br> a la escuela. (volver o-ue) *<br> Your answer

Juli2301 [7.4K]

Answer:

Nosotros volvemos a la escuela.

Explanation:

With the form of nosotros, the word doesn't change.

4 0

2 years ago

PLEASE HELP ME CORRECT MY SPANISH THANKS<3

Finger [1]

Answer:

1. Nosotros no conocemos Barcelona muy bien

2. ¿Tú conoces a Mónica?

3. Yo se la respuesta

4. Nosotros no sabemos nada de algebra

5. ¿Tú sabes dónde está la tienda?

6. Mi hermanito sabe conducir

7. Ellos no saben nada

8. Yo conozco a Mario

9. La profesora conoce a sus estudiantes

Explanation:

6 0

3 years ago

Read 2 more answers

¿le escribe rolando un mensaje electrónico a miguel? ¿nos trae el botones las maletas a la habitación? ¿les dan gafas de sol los

san4es73 [151]

Answers:

¿le escribe rolando un mensaje electrónico a miguel?

Does Rolando write an email to Miguel?

¿nos trae el botones las maletas a la habitación?

Does the bellboy bring the suitcases to the room?

¿les dan gafas de sol los vendedores a los turistas?

Do the vendors give sunglasses to tourists?

¿te compra botas en el invierno tu mamá?

Does mom buy you, boots in the winter?

¿les muestra el traje a ustedes el dependiente?

Does the dependent show you the suit?

¿me vas a buscar la revista en la librería?

Are you going to look for my magazine in the bookstore?

Hope this helps!

$\textit{\textbf{Spymore}}$

4 0

2 years ago

NEED SOME 5HEAD SPANISH PERSON TO NEED HOW TO DO THIS <br>

GenaCL600 [577]

a. La

b. Los

c. El

d. Las

e. El

g. El

h. La

i. Las

j. El, La

Letter f. is a little confusing.

8 0

2 years ago

In Spanish, interrogatory sentences have a(n) _____ at the _____ of the sentence.

Monica [59]

Answer:

Upside down question mark, beginning.

Explanation:

Ex: ¿Cuántos años tienes?

Questions usually also have an accent.

hope this helps:)

4 0

3 years ago

Read 2 more answers

a number of two digits exceed by 9 the number form by reversing the digit. If the sum of the digits is 13.find the numbers​

a number of two digits exceed by 9 the number form by reversing the digit. If the sum of the digits is 13.find the numbers