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
andrey2020 [161]
2 years ago
15

If the digits of a number add up to 9, what number is it divisible by?

Mathematics
2 answers:
Lelechka [254]2 years ago
8 0

Answer:

9 and also 3

Step-by-step explanation:

Numbers whose digits add up to 9 are divisible by 9. For example 18, 27, 36, 45, 54, 63, 72, 81 are all divisible by 9.

Numbers whose digits add up to any number divisible by three are divisible by three. So 237 has a digit sum of 2+3+7= 12. 12 is divisible by three, so 237 is divisible by three.

In this question any number with a digit sum of 9 is divisible by three as well as 9.

telo118 [61]2 years ago
7 0

Answer:

It's divisible by 9

Step-by-step explanation:

You might be interested in
Find the value of the unknown side length for the given perimeter P. P = 14 m A. 3 m B. 4 m C. 14 m D. 25 m
koban [17]
If the perimeter is 14. Add 2,4, and 5 which is 11. Then find out how many meters does it take to get from 11 to 14. In this case the answer is 3
5 0
3 years ago
Para recortar algumas figuras geométricas, um aluno utilizou uma cartolina com 1mx0,8m. Sabendo que ele recortou 2 triângulos, a
Gnom [1K]

Answer:

7190 cm²

Step-by-step explanation:

Para recortar algumas figuras geométricas, um aluno utilizou uma cartolina de 1 m x 0,8m.

Passo 1

Determine a área de todo o papelão

= Temos dimensões = 1mx0,8m

Área = Comprimento × Largura

= 0,8m²

Nós convertemos para cm²

1 m² = 10.000 cm²

0,8m² = x cm²

Multiplicação cruzada

0,8m² × 10.000 cm² / 1 m²

= 8000 cm²

Passo 2

Sabendo que recortou 2 triângulos, ambos com 20cm de base e 30cm de altura

Encontramos a área de um triângulo

= 1/2 × base × altura

= 1/2 × 20 × 30

= 300cm²

Ele cortou 2 triângulos Portanto, o são dos dois triângulos = 300cm² × 2

= 600cm²

etapa 3

Ele também cortou 2 trapézios ambos com bases de 10cm e 20cm e altura de 7cm.

A área de um trapézio =

1/2 (a + b) h

= 1/2 (10cm + 20cm) × 7cm

= 1/2 × 30 × 7

= 105 cm²

Ele cortou dois trapézios, portanto

A área dos dois trapézios do corte = 105cm² × 2

= 210 cm²

Passo 4

A área total do papelão que foi cortado = 600cm² + 210cm²

= 810 cm²

Etapa 5

Determine em cm² quanto de papelão sobrou.

Isso é calculado como:

Área total do papelão - Área total que foi cortada

= 8000 cm² - 810 cm²

= 7190 cm²

5 0
3 years ago
Date
Nitella [24]

Answer:

perimeter =22m

area=28square meter

perimeter of rectangle=4l

22m=4l

22÷4=l

5.5=l

l=5.5m

area of rectangle =l×b

28=5.5×b

28÷5.5=b

5.09=b

b=5.09m

length =5.5m and breadth =5.09m answer !!!!

7 0
2 years ago
A stack of 200 pennies is 1.325 inches tall. Mario guesses that each penny is 0.013 inches thick. Explain how you know Mario’s a
pishuonlain [190]

Answer:

200 divided by 1.325 = 0.006625 thats how big each penny is hope this helped! :)

Step-by-step explanation:

6 0
2 years ago
Lily's car has a fuel efficiency of 888 liters per 100 kilometers.
Katen [24]
12.5 kilometers per liter
6 0
3 years ago
Read 2 more answers
Other questions:
  • The circumference of earth’s moon is about 1091500000 cm. Write this number in scientific notation
    9·1 answer
  • Evaluate the following expression b=3 c=-3 (b-c)(c+2)
    11·1 answer
  • Please help! I will give brainliest
    10·1 answer
  • Find the product of 987.2365 and 1,000.
    9·2 answers
  • What is 12-42 simplified
    7·1 answer
  • Help pls I'll mark brainliest
    5·1 answer
  • If there are 120 boys in the group, how many boys and girls are there TOTAL? Use the tape diagrams to solve.
    5·1 answer
  • Is this right ? if not please help me !
    11·1 answer
  • Find the median of the data box plot below
    9·1 answer
  • Investments increase exponentially by
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!